I had to comment again. In 1970 I worked for a Ford dealer in Florida. I just bought a new 390 Mach 1 Mustang from my employer. A 1969 Boss 429 appeared on the lot with high oil usage and smoking badly. I went to the office and they took back my GT 390 for an even trade.. Subsequently I put the KK429 into a local speed shop. We determined the brass valve guides were shaped oval due to the canted valve side thrust. I had the brass valve guides nuralized in the machine shop and the motor retuned for max performance. Oil consumption stopped and my bad days with the Bow Tie guys was over. The GT390 would loose a 1/4 mile drag to the SS396/375 HP Chevelle by a half a car length every time. Switching to the newly tuned Boss 429 (KAR KRAFT 1820) solved the problem. I never again lost a race to a Chevy. We ran in the "A" stock class at that time. What fun days. After getting married with a new baby and getting military orders, I sold the car for 3000 and left for WestPac with the US Navy. All I have left is my wedding pictures with my wife and I riding around in the Boss. I drove the car coast to coast and cold get about 8 miles per gallon driving normally. Gas was 31 cents a gallon or so. What memories ! Thank You !

Much Respect! Finally Someone Who Isn't AFRAID To Stand On It . Hell that's what they where built for.

This is literally my dream car the colour and everything is perfect

Nothing like analog Ford horsepower. The Boss 429. My favorite Mustang of all time.

The holy Grail of Mustangs!

To our younger friends watching, this is why cars from this era are called " muscle cars ". Todays cars are badass but it took a certain kind of someone to really run these beasts, drum brakes, poly glass tires, many with no power steering and big horsepower. I was born in 1964 and started driving in 1979, cars like these were everywhere for $700.00 to $1000.00. many of my friends are in the graveyard from driving these beasts. Thanks for the video. I enjoyed it.

What I like about it is when you are sitting at a four way people looking at you and you are sitting in one of the baddest cars ever built

I can't help but rewatch every time he puts his foot down on the gas, hearing that big block rev up. Sounds so good, brings a tear to my eye.

The baddest ass mustang ever made from a Chevy guy

OMG, the sound of that car is amazing. I love that rumble. Nothing beats the classics.

if that's the stock exhaust, its just sic. I have never heard a car sound so good in all my 70 years. Yeow! I watched it several times and turned up the sound. Its just awesome!!!!!

I worked at Dearborn Assembly when that was built. I was the afternoon stick shift roll test driver. I got to drive more than a couple. The '69 cars were problematic, I worked a ton of overtime that year. not so much in 1970. The guy that showed me how to do that job had 1929 seniority and was leaving.

Owning this car makes you the curator of your own museum..

Love that he isn't scared to drive it like it was meant to be driven.

I'm a mustang guy and this has to be the best car I've ever seen from the factory thank you

Wow drive it like you stole it ... Hat goes off this guy for driving that boss 9 like you should just awesome 👍👍😎

It's called the Boss for a reason. I believe there is an engine builder called Kassie? Who was getting 900+ hp out of the Boss 429 on pump gas 😲. Also back in 94 there was a showdown between gm and ford to prove who could build the fastest 1/4 mile car. Gm choose a Camaro and Ford a Mustang. First race Gm won because the Boss 429 Was having pushrod problems. Being hard to find parts for the 429 they came up with a solution. After that the Mustang destroyed the Camaro consistently. Myself whitnessed that Mustang do a burnout at a cruise years later. It was like watching a nitro funny car! I spoke with the owner and he said at that time the car had 850hp and next time I would see them the car would have 1200hp! The display of the Mustang noted it as the fastest street car in America at that time. And being raised near the Dragstrip, I had no reason to doubt them. I dont recall the 0-100 time they displayed, but I remember my Brother and I laughing and saying that it was incrediable. Dont mess with the Boss. TRUE BLUE BABY 💥👍✌

Beautiful car. I would sleep in it if I ever have a chance to own such a masterpiece.

Been a long time since I've heard an engine sound so smooth when held at limit. Thank you for showing off her internals.

Yep, that’s the sound of Godzilla clearing his throat!

Mustangs got to be the best Looking cars ever produced

What a treat to actually get in and go for a nice rip in this classic. Makes me happy to see it's alive and well and being driven and enjoyed rather than stuffed away somewhere in a glass case.

I had a 69 mach I when i was a kid. I paid $1600 for it and it had a cobra jet with a shaker hood. I only wish i had kept it. I still think the 69 is one of the most beautiful cars ever built.

When you’re a muscle car fanatic and KZfaq suggests a video and realize this Boss 429 is just across town from you...

LOVE the roar of the engine. That's when America was great and made the finest automobiles on the planet. Haven't heard that roar since High School.

Nothing can beat old school. Looks and power

In late 1969 I walked into the local Ford dealership in Louisville Kentucky. Setting on the floor was a Candy Apple Red Boss 429 with the price of $5000 written on the windshield. I was there to purchase a new Red with gold strips Mach1. As much as I wanted the Boss 9. It didn't fit my budget so I drove home in my new 69 $2800 351 4V Mach 1. As years past and I started a family. The Mach 1 was traded for a family sedan. I always thought about that amazing Boss 429 with the large hood scoop, Boss 429 decals on each fender and that huge SOHC engine. But being young and not a fortune teller. Who would have known the value of that car today. I have to add. Maybe because it was my first new car. I have never owned another vehicle that I enjoyed as much as my Red 1969 Mach 1 which also fetches large prices for restored copies. 1969 was a great year for Mustang styling and performance. Thanks for sharing this surviver Boss 429 and putting us in the passenger seat.

My hat off to the owner!!! He truly understands the reason to own one of these.

That is the most beautiful sound I’ve ever heard

Glad to see this 50 year old is being enjoyed and driven as designed. The big block brute has always been my dream Mustang when I was a kid and even as an old man, I love it's nastiness. I'd be tempted to drop a modern 6 speed in it and update the brakes, suspension, fuel system etc... but then it wouldn't be what this one is, a very rare machine.

Omg stop it! That’s my favourite car in the entire world. Uhhhh it’s like I’m having an eargasm!! Beautiful beautiful car.

Thanks for the ride! Could almost feel being pushed back in the seat when he stepped into it! What a badass muscle car, a dream car for sure. The raw horsepower is insane, and much respect to the owner for driving it like they were built for!

Thanks guys ... No often do we see the Boss 9 wind up..And this was just great!! They are like P51's. It's not war time and we don't have to push em to get the the real feel of the real monster

The comments of people that had in the 70s a Boss 429 are great! Lots of fun when we were younger, no pains , excellent music, no regrets, and of course lots of respect to all of the other excellent muscle cars ,be safe so we can continue enjoying such a wonderful memories

There's nothing like that sound. I wouldn't use the radio...ever.

Awesome car!! Thanks for sharing the memories I was around in the era of the 60'S and 70's...

It sounds like you're unleashing a monster!

Baddest Ford ever in my book. I get goose bumps hearing a Boss 429! On my bucket list for a ride!

The Holly Grail of Mustangs. The Bullit Mustang used to be my favourite, but now this is the one. Greetings from Portugal.

Damn that's some good information. Wow capable of 600 NA hp! Back then i bet that was lunacy.

work of art, so beautiful. I sit in awe as the car jumps up from the torq

Even Hemi’s didn’t like messing with these. Just an absolute monster.

Stunning. I always loved these cars. I was 17 when these cars came out. Thank You both for this wonderful demonstration of a rare classic muscle car.

You can sense the power just from watching the video. Gold and silver are not the only treasures I seek.

Totally different sound than a 351 C. Deeper with a wild sounding scream I've never heard on built small blocks. Very cool.

THAT BEAST SOUNDS BADASS!!!!!

That may be the most impressive ride along for a muscle car that I have seen. The torque to simply break traction with the 4 speed in 1-2 was fun to watch. Thank you for the share!

This is the most desirable muscle car or any car that I can imagine. Thank you for this video showing the power and class of this beauty. I've got exactly the same car in my collection, only it's in 1/64 scale. :)

Pat knows his stuff. Great car and video!

Great video thank you, that's one of my favorite mustang's, love the color

What a sweet ride! Thanks for sharing guys. Some solid gold from the 60's. I was too financially challenged and too dumb to take advantage of what was offered. Oh well. At least now, after watching the video, I can dream.

Made my eyes water when I heard that high rpm

That is a sexy car and when you started it up damn and see it going down the street like that how cool wood that be to see that thing going down the street great video man

A 735cfm carb. My boss 302 came with a 780cfm it breathes and it roars. Feed that big block.

Now that's one of the best ford's ever build...all power....no computer chip!!!!!

I am drooling! This is my dream car 🚗

Wow, what a great find. Definitely a great driver car with the fresh engine and new camshaft!!! Sounds like it should have!

The Boss 429 and the Torino Talladega was a hell of a combination.

Thankyou for showing this very special 1969 Boss 429 Mustang. Great car.

The BOSS 429.. doesn’t, and will never get any better. A few years ago I read a story about one being found completely disassembled with only 11 original miles on the odometer. I never found a follow up story, but I can imagine that it’s sitting in someone’s showroom still wrapped in plastic with one hell of a story behind it.

dayum... that is a symphony to my ears!

I can tell owner is the real deal , he actually knew why the oil coolers went on and I see the trunk key left in the trunk.....

Ford had originally wanted to use a 1100 cfm holly but it wasn't ready when ford produced the car.

Doing history and power! Great video and miss the simplicity and values of the 60's and 70's. Thanks for sharing.

Thank You !! What a beauty

Honest to god amazing car and it sounds amazing! Lucky man!!

Excellent video with information , test ride even the music , all good . Way to go boys.

Super nice stang! That sound... oh my.. that sound...

Man does that thing sound sic! I love it

One of my dream cars.

my seven years old kid favourite hotwheels... fantastic car with real sound

Its awesome to see you driving it and not afraid to have fun with it too! Drive em while you still can cause tomorrow's not a given. Love that color too

What a freaking BEAST!! WHAH-HOOO!!

I'm a Chevy guy, but the'69 Mustang is my favorite Ford. A local guy that I kinda knew was a Mopar Hemi fanatic. He would buy every Hemi car he could find, swap the engine to a 383 or 440 and sell the car. He also bought a new Boss 429 Mustang, I'm not sure which year, and he took me and my friend for a ride and it was awesome. He didn't keep it long and it's the only Boss 429 I ever saw.

Thank you for actually driving the car the way it was meant to be driven. A very unique Ford muscle car, impressive.

1969 Mustang isn’t just the most beautiful muscle car, not just the most beautiful Ford. It is, in my opinion, the single most beautiful car ever to come off any production line from any car company in the entire world. Add to it that big block rip and you’ve got an extremely desirable experience

Brings back memories of my 69 428 CJ. Blew up the original motor and replaced it with an all aluminum 430 grand national. No body on the street ever came close to beating it. It was wearing a holley 1050 dominator and would get about 5 gallons to the mile with your foot on the floor. Top speed was about 147.

Awesome - big badass & beautiful. Car is sick. Sounds wicked on full song. A true muscle car icon. Respect.

Great video drive it like you own it! Thank my favorite Mustang

Nice video. Swwweeeet car! Great job guys.

I hear muscle cars rev, I click like.

Wow when that guy leaned on the gas, did you hear that sweet sound? Wow!

Amazing car and thanks for sharing it with us. I have a Boss 302 Laguna Seca and it is unreal.

7:17 Keys left inserted on trunk 😮 Must have been lil excited for that test drive lol. FYI: She's a Beauty! ❤👍

That is the best video on a 1969 BOSS 429 on KZfaq ! Respect 👍

Those Boss 429s are just badass. My dream car. Black too!

My Dad had one of these, loved it when he drove it in beast mode.

He shifts like my wife!

Its nice to hear one on full tilt from inside the car for once, normally its always outside the car

I remember the bottom portion of the air cleaner had normally open air port doors . So that when you closed the ram-air scoop vacuum was over ridden and the warm air port doors opened . A very COOL Ford .

That sports roof is just beautiful. What an awesome car!!!

If Heaven has music it will sound like any Ford 429

What an awesome car! I’ve got a black jade 69’ with a stroker 427. It’s only 450 horsepower and it is scary to get on, I can’t imagine a 429 with 600 horsepower!

The meaning of a true muscle car... You have a beautiful car!!

3 gas stops later the 12 min video is finally complete 😄😄😄......very nice!!!!!

I sold my 1970 428CJ RA 4-speed Mach 1 to buy my 1969 Boss 429 Mustang in 1977. Owned the car until 2002. The car I really wanted I had seen several months earlier - a 69 Boss 9 Wimbeldon White with around 7000 miles, but didn't have the cash to buy it then. The Boss was basically a race engine and Ford had tried to detune them for street use. Installing a better camshaft helped them run a lot better. The money now is in original condition cars and if I had one today, I would keep it or restore it to original condition. The Boss in this video does not sound like a stock original Boss. Noteworthy: I have seen Holman-Moody dyno graphs of Nascar prepped D-port Boss 9s pulling around 640 HP - about 40 more than the Nascar Chrysler Hemi.

It's funny the older we get the faster these cars were. I am almost 80 and I remember these cars running at E-Town in NJ. The factory-sponsored cars (Tasca Ford) were beating everybody but on the street, the sb Chevys would eat them up. I am a die-hard Ford guy but also a realist, the Boss 429's were never king of the street. The 428 CJ's were much quicker.

Beautiful car! Guy knows his shit. Learned alot from the video! Thanks! In late 80s me n my buddy built a 70 grande with and put a built 351c in her with a built auto n 390 rears. This brings back memories. Awesome

I drove my 70 mustang daily for nine years. There was something about that car, it was special. It was mean, but so easy to control. Rev matching was smooth and seamless and oh with the sound that poured out of the pipes... Pure heaven. It was just a blast to drive, great memories. Best part of my youth by far. Second Mustang was a 68 California Special, it was very cool, but an Automatic, just not the same.

9:33. Godamn son, that's how i like them, mean and clean. A pure car, with no electric assist, like esp, tcs and so on. that's what i call a real car.