piston questions

And AJ.... I've put 360 cams in 318s/ and that makes a 318 of the day definitely run better than a 360 of the day. All stock as built they're about a "draw" other than the fuel thirst.
I've also put 360-2 intake manifolds on otherwise stone stock 318s (but not a 360 cam and 360 carb/intake on any one engine at the same time) and THAT has woken up the 318 "enough to be noticed by the old butt Dyno".