road car cam for my 318

I’d pass on the quadrajet, the TQ is a much better carburetor. You’ll end up going down the rabbit hole and talking to a bunch of chivvie guys and what do they know? Nothing,otherwise they’d own mopars.
A quadraJet is a good carb, when done right. Problem is it takes more work than a TQ and isn't designed as well. But when done right it will run 10 sec quarters and in another application, get 20 mpg on a 350 engine. You could always count on Chevy to snatch defeat from the jaws of victory. Bean counters ruled the roost, not engineers.