b16a2 > ZC
end of story. you can make any motor go as fast as any other motor if it is "built right"

you can't make a ZC vtec. its the only d series engine with 2 cams...all d series vtec motors have 1 cam.

do yourself a favor geoff, get on honda-tech and do some searching. there's is tons of info on just about any noob question you can come up with.