Ok, one more question on the Holley jetting.

Dana said
If the PV was the issue, a 7.5 would be going the wrong direction. But I don’t think the PV is the issue after all the good info Trailbeast has given. In the beginning, I was expecting to hear he was running around a 10.5.

You do not set power valve opening by idle vacuum. You set it by cruise vacuum. If TB has 14 inches at idle he’s probably 22 inches at cruise.

I’d drop a 10.5 PV in there and start over.