building a mild Daily driver 318

66fs said
Zero Deck gives the advantage to the larger bore. You should build compression ratio for the gas octane you want to put in your tank, day after day. If that is 91 octane, then you are at about 9.0 to 1. That puts your 360 piston at least .08 in the hole, and the 318 piston .07 in the hole. The more interesting numbers are the HP gains going from the 2 barrel to the high Performance 4 barrel HP numbers. If you add the 4 barrel carb and intake, 340 cam and valve springs, on to the 360 heads you add NHRA factored 65 HP. It works the same for the 318 as long as the compression ratio is the close. And the 318 will pull to a higher RPM.

Try telling that to my 360. It goes 7200 for 11 years and at up to 11.2 Scr on nothing but 87E10.
My KB107s are .005 up out of the hole, and although the current gaskets are .039s, It has run with the .029s as well.It has never run less than 32* power-timing, and is happy at up to 36*. I have run 3 different cams in it with the same results; no detonation.

In any case my comparo had nothing to do with horsepower whatsoever.