Is there a way to restrict the powervalve fuel flow? I have a cruse afr very close to 14.7:1 and 11:1 with the pv open. 12.1:1 is ideal. I have 8 adjustable emulsion jets on my metering blocks. Does the pv circuit mix at one of these? I cant find crap on emulsion jet tuning anywhere???

Yes you can restrict the fuel from the PV circuit, easiest way is to use a lower flowing PV. They come with differant sized windows, you can also drill and tap that hole for a 6-32 thread ( depending on what size it is now and what size you want )and use a brass set screw drilled the appropriate size. Doing this requires removing the emulsion tube. If you dont have any replacements great care must be takin removing the old ones.
The Power Valve circuit feeds the main circuit so it doesnt have its on air bleed.

Tom, I've heard either lead shot drilled back out, or simply a piece of correctly "diameterd" wire to restrict the flow through the PV channel.

You're likley not needing to restrict much, say from .063 to .055-.053, so a very small diameter would do it. Never done it btw, and remember that all these are area calc's, so a little change squares up in a big way.

I can’t believe how rich it gets with the pv open. I’ll have to try some wire, I think I have some .020 to start with. Does any body know what is up with the adjustable jets in the Air bleeds to main well, and Idle air bleeds in the metering block? I don’t see why you would need to mess with them?

Have any guitar strings? I have a few mandolin strings, and you could snip off enough to restrict. Figure its around .007-.010".

Those air bleeds are to keep the pressure drop across both venturi(booster), and idle curcuit metering the right amount of fuel, but how to tune them I don't know.

You have blocked off secondary PVs? Or are you running all four? If 4, theres your answer IMHO. Go to two only. ( I have a Holley jet kit at the house if you need).

Or you could improve your fuel milage by going a touch leaner than 14.7 during cruise, and also lean out your mix when you stick your foot in it...go one or two jet sizes leaner, leave the power valve circuit alone. Much simpler, and perhaps worth a try.

I blocked off the rear pv, I don’t understand the need for one in the secondaries. I found some .010, .020, and .032 at work. I am going to measure the inlets, and figure out the aria of the wire to get a % decrease in volume, and see what happens on the wideband.

What is with the meteorologists in Buffalo? Everyone has a different forecast for this Saturday.

Well what I took a 14 gauge awg wire that I stripped and found .014 copper strands. The smallest that I got from work was actually .020. I decided to install the .014, and noticed very little if any deference. In order to get a good idea of what was really going on I did a run in 4th gear with the primaries open to the point right before the secondaries begin to open. My afr was consistently 10.8:1-11:1. With around 5 psi of boost, the pv was forced open for the 18 second run. So I think that I will have to try the .020, and I think I can go down one jet, one size in both carbs.