Holley running rich at part throttle cruise

evil66 said
Original setup after dyno was 74/82 jets, 6.5 power valve. Seemed to cruise rich and had a hole in the middle under acceleration but full throttle was fine.

Do you have printouts or files from the dyno runs?

evil66 said
Increased the pvcr size from 61 thou to 67 thou and my wot afr is around 12.9 to 13.0 so i might go up one or two thou more.

I understand you prefer to err on the richer side. Might be good to hit the dyno again. Even more so if the emulsion holes and kill bleed in the 4779 blocks are different than what was tested before.
That's one of the points of this comparison
100 cfm more with anular and downleg boosters can't beat AFR
A series of incremental jet changes showed where max power was (is) for that combo.
Another is that its useful to observe the high gear WOT AFR over the full range of rpm.