ok so I have an update, I built my motor and dropped it in but I couldn't get it to start so after troubleshooting I found I didnd't have spark.

After taking it to a shop, we found that I have power going to the coils but no ground!? What could be causing this????
Is is unsafe for me to ground them myself if I can't figure out how to fix the problem??? After all, its just 6 grounds that need to be run...

 

Is it a G35 engine harness or Z harness. They ground differently.

 

yeah more details on your build, is it the same wiring harness??

 

its a G35 coupe harness.
FYI: I have the tiny ground that bolts to the front timing cover hooked up, the ground on the driver side of the engine bay (the one right above the driver side exhaust manifold)., and I added a ground made with thick monster cable that runs from the front timing cover to where the driver side shock nuts are located.

 

Is anything else not working in the car? windows/AC/etc

 

yup. everything else works fine. Well all except the AC because I broke the lines so the plugs are connected but it won't compress.