Quote Originally Posted by 818speed View Post
Installing an aftermarket FPR looks fairly straightforward. I’ll probably go with an Aeromotive one. How do you recommend I dial in the pressure?

Also, I have an iWire harness, and I think the fuel controller is an upgraded unit.
The fuel pressure should be set to 43.5 (ish) psi with the vacuum source disconnected. You'll want to install a dial gauge to the FPR so you can read the fuel pressure while turning the set screw on top. Here's what I'm running:

Aeromotive Fuel Pressure Reg 13109
Aeromotive FPR Gauge 0-100 psi 15633

Great to hear iWire updated the fuel controller, you're probably all set.