Just installed a pro flo 4 on a friend's 468 big block Chevy. He purchased the kit with 60 lb/hr injectors and it's using a return style fuel system at 43 psi. When I run through the setup wizard, there's only …

Help! 351W, ausi heads, small bullet cam, headers. Got numbers down on new install to 0 running 1800 and above. Still - 10-15 under 1800 after 150 miles and still having issues with starting cold. Try off …

I have a pro-flo 4 kit and edelbrock efi sump fuel system on a sbc engine. My problem is low fuel pressure, when I put in the specs for engine it needs 58 psi, engine cold it has 55,56 psi, warm it has …

Mar 15, 2020 · Just got the timing all set and first startup. I'm running the 5033 calibration on a 454 big block with the edelbrock 58psi fuel regulator. I was advised that the fuel pressure referenced in the …

Feb 14, 2025 · I kept hearing a faint noise under the hood. I tracked it down to the idle air control valve. Even with ignition off it’s still under power. Any idea what is causing this.

Feb 6, 2024 · I have an 87 Chevy 1 ton 4x4 with dual fuel tanks. I have an HT502 motor in it topped with the Edelbrock 35870. It runs great with the exception of excessive pinging when I am pulling …

Jan 27, 2023 · Helping a client tune a Pro-Flo 4 EFI system installed on a BBC with and Edelbrock Total Power Package 540 HP kit and a Procharger D1SC installed and plumbed. Note that this is in an …

May 29, 2023 · Good morning! I am in the process of a complete wiring harness replacement on my 77 Chevy K10. I've had the PF4 installed for a few years now - it's been amazing btw. Literally not a …

Apr 18, 2024 · I am working on the dreaded 1989 k1500 Chevy. This year they used parts from many different years and makes. Some bolts are metric and some are standard. My issue right now is how …

Installed pro Flo 4 XT on 496 BBC. Car runs great warm. Love the system. My issue is when the motor is cold it will surge and stall. Long term and short term fuel trims roll up and down.. When fuel trims …