Lol that’s the things I’ve heard as well. It’s like GM and Dodge thinking they needed a car to do road course in the 60s early 70s
so the Z28 and T/A cars were born lol. I always heard no less then a 383 for straight line performance. Same across the board GM did have the 350 god bless their souls. 396 was there top of the line and then you had to get a nickey or a motion car to really get the power of mopar. Ford was on another planet back then. This cj motors were no joke. We wedged a 428 in my dads 77 step side and my gosh torque monster. I know the 429 was supposedly better, but if I were to want a 60s era mustang which I do like, it would be a GT500 69 grabber orange 4 spd. I can’t camaro 69 they just don’t appeal to me. I’ll gladly take a Nicky 67 camaro any color. Now with dodge dodge I love me some cuda. I love the hemi, but the 440 appeals to me just due to not wanting to have do all the maintenance on it.