|
I would say check the plug wiring. I would also check the CO. I am not sure but if your fuel filter was really plugged then you changed it, it might change the mixture. The backfiireing could be a lean mixture or retarded timing or the plug wires crossed
__________________
Dean
911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno,
|