20 and 30 years ago I would buy an A body and they were the cheapest alternative. Speed parts were another story. Since the Chevy 350 was a common as air and in need of speed parts due to its clear weakness the speed parts were everywhere and cheap. Ditto Ford. But us Mopar guys where not the target of the speed part manufactures. However, we where well ahead of the game we had .904 lifters, dual pattern cams, forged cranks, high nickle block, 2.02 intake, best flowing cast iron exhaust of the era, awsome strong 4 speed and high stall for the slush box guys, as well as a light strong body construction, just to name the obvious. I would be at a gas station and a Camaro, Chevelle, Mustang would pull in and try to idle you could hear the big cam fight the low stall torque converter way off the idle circuits, mine would idle all day. People would say "sounds bad!" in reality sounded like a piece of chevy put together by a chevy guy.
Now Mopar's are expensive. Thank god I purchased my last Mopar 68 GTS Conv. 340 in 1993 for about $3k, back when it was just us believers against the world. I'm happy to see people leave Mopar for Ford, Chevy, Ugho, Smartcar, Donky, whatever... I am in it for the performance not the investment. Someday it will be just us Mopar guys again and I won't have to constantly explain how a carb works or why all mopars with an auto had a trans cooler or why roller bearings are for cars and ball bearings are for idiots....
See you on the streets.