Good for you. Your asking the right question at the right time. You'll get lots of good info, but some of it might sound conflicting at times. You'll need to sort through it and decide what is best for you, based on budget, performance goal, and streetability. You might identify your performance goal in terms of et and mph, and your idea of "streetability" as the responses you get will be even more on-point.

A flat top piston with 915s and a tight quench distance will perform very vey well, however, I think that combo will push the CR up close to 11:1 and might be difficult to use pump gas. But if you want a big cam with lots of lope, you might be able to get away with it. Others have used the reverse dome KB piston, pump gas, iron head, small cam (224* 0.050") and flirted with 12s with BF Goodrichs and 3.23s. Having well prepared heads is key.

Good Luck