holley help please 750 vac.

crackedback said
That's your idle/drivability issue right there.

You need to get it running at idle right with more advance, then limit the advance in the distributor to hit the total number. Set it at 14 and see how it reacts and DON'T drive it if you know it's going to ping.

I don't have a single SB mopar that runs with less than 12* of initial, some as high as 22*.
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well crack your on the dough timing was a issue for sure no more back fire set at about 12 rt now runs much better very minor stumble on quik excl. but that may be excl. pump or shooters possibly thankz for advice raining now will get back at it ty any more pointers any one please ty ca:happy10: