holley help please 750 vac.

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*.
well this morning went out checked timeingon timing cover there are marks 0 10 before and 10 after on my fluid damper are 0 and 10 +.. and 10-- on the fluid damper if im faceing it from the front is 10 + on the rt or left and do i put the 10 on the 10 after on my timing cover to make it 10 adv.. any help would be great