Holley Transition Circuit Tuning

Newbomb Turk said
You PVCR size will change with your MAB size. If it were me, I’d use a .026 MAB and a .062 PVCR and tune from that.

That metering block looks like the upper emulsion hole is below float level. And the stack is very close together. Hmmmm.

Also, I can’t see where the IFR is, bit if it’s in the top you should move it to the bottom while you’re in there.

.028 IFR and .072 IAB is a safe start and if it’s a bit lean you can drop the IAB to .067-.068 and fatten it up if you need to.

Thank you again. I appreciate the input

Yes, the IFRs are in the bottom location. All I did was drill out the brass plugs and tapped them for 6-32 set screws. The IFRs out of the box were .027, which are pretty small. I'm going to stick with those for now. The IABs are .070", so pretty close to what you called out.