Most Under-Performing Musclecar Ever Produced?

[Superfan1]

Originally Posted by Jeff Lee

Hmmm...how about the '67 Mustang 390? What a pig. Now, with NHRA allowed superseded parts (block, heads, ,oil pan, intake, carb), it's super fast!
And when I see a '69 Mach 1 cross the auction blocks with (big bold advertising!) a 390 under the hood for big bucks, I want to yell...sucker!

And I would gladly race a stock '68-'69 340 Dart with a 4-speed and 3.91's against a stock '66 Chevy II 327/350 with 3.73's. I think it would all depend on who was driving.

Jeff, as a general statement, I agree with you. However, I was fortunate enough to have a very fast '67 390, 4-speed. Bone stock, just as it was delivered, it ran 13.8s@103 mph. The other 390 Mustangs were running very high 14s@95 mph! The only cars that I couldn't beat were 396/375 Camaros and Chevelles. To this day I have no idea why it was so much faster than the average 390, but I sure surprised a lot of people with it and I had a lot of fun.
Bill Seabrooks - superfan1
Bridgeport, CT

[Paul Ceasrine]

Those 1966 Dodge Chargers with the 383/325HP were no fun,
Over 3700lbs. of steel.
Just what could you use that car for?
PC

[Frank Castros]

Like some of you I'm old enough to remember the true muscle years.
I drove a friends '69 Boss 429 Mustang: Very over rated performance but impressive with the hood open.
I owned a '69 383, 4-speed, 3.23, Road Runner: 13.80s with street tires, headers, tweaked AVS and recurved distributor. Not bad.
When the '71 Dusters & Demons came out with the Thermo Quad and 3.91 gears they kicked some butt right out of the box.

[X-TECH MAN]

Originally Posted by Superfan1

Jeff, as a general statement, I agree with you. However, I was fortunate enough to have a very fast '67 390, 4-speed. Bone stock, just as it was delivered, it ran 13.8s@103 mph. The other 390 Mustangs were running very high 14s@95 mph! The only cars that I couldn't beat were 396/375 Camaros and Chevelles. To this day I have no idea why it was so much faster than the average 390, but I sure surprised a lot of people with it and I had a lot of fun.
Bill Seabrooks - superfan1
Bridgeport, CT

Someone stuck a pre production 428 CJ in it when you were not looking.....lol. My buddy had one and it was a dog.