Ok I am going to start from the beginning. About 1 1/2 months ago I started my swap. I started out with a 1991 CRX DX automatic transmission and all. I put my DOHC ZC in it and converted my car from DPFI to MPFI and I also took my car from automatic and made it a five-speed. I still do not have a down pipe so keep that in mind when I ask my questions. My motor shakes pretty bad when I start it up. It also sounds like it is running on 3 cylinders. I have double checked my injector wirring, bought a new cap and rotor, as well as plugs and wire's. Here are some of the things I have checked. Injector wirring Vacume Lines Fuel levels Things I am going to check: Compression Recheck wirring and vaccum lines Timming So what do you guys all think it might be? Any other things I might want to trouble shoot?? Thanks everyone one in advance for any and all help.