aight guys i got a 1991 z28 with a l98. i bought a NX wet kit from a friend who had it on a 01 cobra. i was wonderin do i hook up the fuel feed to the solenoid from the fuel pressure regulator?

 

Yes, but get a T-fitting, so you have a line coming off you regulator and have it split. one line going to your selinoid and the other going to your carburator. And your using an electric pump right? or at least a good after market Mechanical pump??

 

how big of a shot is it?

 

im gonna start with a 75 and see what happens prolly no more than a 125. ill need to take like 4 degrees of timing out right

 

general rule of thumb is 2 degrees for every 50 hp. but with a 75 shot or lower it doesnt really matter

 

Alot of the manufacturers even say you can run base time even with a 100 shot although I still take 4 degrees just for safety.

 

well since you have TPI, all you do is take the shrader valve out of the fuel test port and screw that line on that goes to the fuel solenoid. then you're ready to rock and roll....since it is coming off the rail, its already regulated to around 45 PSI is what NX recommends for EFI engines. Also i would bump the timing down 2* per 50 hp and work your way back up, checking the plugs after every bump up, allthough i dont see why 75 would need much timing pulled on the tpi, i ran 100 on base timeing in an SD car no prob.