You can always get an OBD-2 to OBD-1 adapter harness and eather a P28 or an upgraded hondata computer if you get the Y8 head..... Here are the differences that I was told... The Y8 is often confused as the better head because of the port size.... It is a little larger than the Z6, but, the Z6 flows better. A friend took both heads in stock form and put them on a flow bench and the Z6 flowed better. The Y8 would be easier to install though, due to the oil and overheating issues. Also, on the intake manifolds, heres a tip. Find a stock intake manifold off of an H22, and have it port matched to the head, as well as ported out a little bit. It flows just as good or better than the new Skunk2 Intake manifolds when you do that! If you are going all motor, slap on a 64-66mm Throttle Body, you should be set!!!