I was hoping to trounce hotstepper tommorrow at rotorstock, but I\'m having a problem at high revs.
Car splutters and backfires above 6500 revs.
WGT have changed plugs and leads.
I have a PFC running at .85 with no cats and uprated fuel pump, is there anyway to see whats happening.
Its also intermittant. Could it be one of the coils.