[Excaliber]

Update!!! I just pulled the 58's from my two fours and replaced them with what I had on hand, four 68's.

WOW, what a difference! Much smoother off idle, better transistion on reving up, cruise rpm perfect, AND idle screw adjustments dialed right in, much better idle. Cool. BUT, the 68's are TO FAT! Loads up at idle if I idle to long, belches black smoke when I nail it (but zero hesitation). I'm onto something. Going with 63's next, I'm almost there!

Dave,
I was tempted to go with your settings, 60's. To paranoid about running lean at high rpm. 63's next, maybe 60's down the road. 60 vs 63 vs 65 may also depend on the "style" of the PV. There are TWO styles. ONE is "big" has a larger orifice and introduces more gas at the same vacuum signal. The other is "standard", less gas at the same vacuum signal. I'm running "standard", I wonder if your running "BIG".... ?