Is there any way an Edelbrock carb can cause intermittent pinging? My stroked 351W has pinged on and off for some time. I've had the distributor apart (MSD billet), tried running with vacuum plugged, retarded the timing right back to 8* with a total of 26* at 2500, and even changed the distributor (to Mallory electronic) with no change. It seems fine, but then it'll start really pinging under acceleration for no apparent reason. This can happen halfway into a tank of gas so there's no changes there.
I'm wondering if something's sticking in the carb to produce a lean mixture? Maybe low fuel pressure - Holley mechanical pump - would these produce pinging?
Thanks
I'm wondering if something's sticking in the carb to produce a lean mixture? Maybe low fuel pressure - Holley mechanical pump - would these produce pinging?
Thanks