How many times are we going to debate this! I have a ZC turbo now but it is coming out for a fully built LS Turbo. I have found out that the ZC won't hold the HP I want, so I want to keep the non-Vtec, but want BIG power. Even fully built a ZC turbo tipically won't handle more than 300-350hp and I want 400+.

The bottom line is how much HP do you want? I have gone through 2 ZCs (I am on my 3rd now) and I am tired. If you want moderate HP than the ZC is great. If you want BIG hp then you need B series.