hi guys, i wanna get the extreme fuel sustem from RX7store, that comes with a secondary fuel rail 2 boash 1600cc injectors and inline resistors, and if i have a PFC, do i still needa wire up the inline resistor? and would it be better to replace the 550cc primary with the 850cc factory secondary, so the primary and the secondary flow are closer? and is it easier to tune with closer flow rate?

 

The only way to not use the resistors with the PFC, is to use the FJO low impedance injector driver.

Stay with 550 primaries as the 850 are hard to idle tune.

The primary to secondary ratio is of no importance.

You need to buy my PFC/DL tuning notes package/membership.