between circuit miss?

Ironmike said
Just checked a few things out this afternoon. Currently at 1200 RPM idle, my primaries are ONLY open by 1/2 turn of the idle screw. In other words if I back off the idle screw 1/2 turn, my primary blades are completely closed.

My secondary idle adjustment is open a bit more, obviously. Thinking about backing off the secondary adjustment a lot, and opening up the primary adjustment to get the same 1150-1200 I need to idle.

By the way, what are T slot restrictor?
Also YR, if my cruise vac is 15 to 16 a 10.5 PV still wouldn't be open anymore than the 5.5 in there now.....or am I wrong?

I guess I could just ditch the powervalves and up my jets 6 or 8 sizes, then see what happens.

The higher number power valve will open sooner so the higher your cruise vacuum the higher the power valve opening you need. The idle vacuum setting is wrong and always has been. There is a cool video by Mark Whitner where he proves the power valve cam be open at idle and not change the A/F ratio.

The T slot restricters are the holes that let fuel get down to the T slot in the base plate. You can thread the main body and use some brass set screws to change how much fuel you get while on the T slots.

If you google it you can see where they go. I don't know why the aftermarket hasn't been installing them. It's just another tuning aid.