- Oct 21, 2006
- 409
- 15
- 29
I was changing my spark plugs and noticed that the plugs from cylinder 4 and 5 where a little white in color. It may be a little lean.
I have my fuel pressure set at 40 psi with vac. off.
How much more should I bring up the fuel pressure to correct it?
I've read that the computer will scale back the injector duty cycle if the pressure is too high.
Is there anyone running a similiar set up as what I have below.
Any help would be great
Thanks
1993 GT Mustang / Ford Racing GT-40 Crate Motor B-303 Cam / 24 lb. Injectors / Stock Ignition / MSD EFI Blaster Coil / Edelbrock 5.0 Upper and Lower Intake with BBK Phelonic Spacer / Professional Products 70mm Throttle Body / C&L C.A.I. w/76mm MAF / Stock Air Box w/K&N Panel Filter / Holley Adjustable Fuel Pressure Regulator / Electric Fan / BBK Underdrive Pulley's / A.C. Removed / BBK Short Headers / Flowmaster Exhaust / Tremec T-5Z / B&M Short Throw Shifter / Alum. Driveshaft / 4.30 Gears / Detroit Locker / Moser 31 Spline Axles/ Subframe Connectors / Line Lock / Driveshaft Loop / BMR Upper and Lower Control Arms / Lakewood Adjustable Drag Shocks/ Holley 190 lph Fuel Pump /
I have my fuel pressure set at 40 psi with vac. off.
How much more should I bring up the fuel pressure to correct it?
I've read that the computer will scale back the injector duty cycle if the pressure is too high.
Is there anyone running a similiar set up as what I have below.
Any help would be great
Thanks
1993 GT Mustang / Ford Racing GT-40 Crate Motor B-303 Cam / 24 lb. Injectors / Stock Ignition / MSD EFI Blaster Coil / Edelbrock 5.0 Upper and Lower Intake with BBK Phelonic Spacer / Professional Products 70mm Throttle Body / C&L C.A.I. w/76mm MAF / Stock Air Box w/K&N Panel Filter / Holley Adjustable Fuel Pressure Regulator / Electric Fan / BBK Underdrive Pulley's / A.C. Removed / BBK Short Headers / Flowmaster Exhaust / Tremec T-5Z / B&M Short Throw Shifter / Alum. Driveshaft / 4.30 Gears / Detroit Locker / Moser 31 Spline Axles/ Subframe Connectors / Line Lock / Driveshaft Loop / BMR Upper and Lower Control Arms / Lakewood Adjustable Drag Shocks/ Holley 190 lph Fuel Pump /