[JAM1775]

Humbucker...Please correct me if my memory is off but if not please refer to my previous posts to you on this subject on your other thread. 71 square was way too lean but now that you have the WOT AF problem solved it is time for "High End Air Bleed Tuning". The 8 air bleeds are located 4F/4R on your carb throttle body. I still firmly believe(you should have these air bleeds on this custom carb) if you pull these air bleeds out yoou will find they are "way too big". The high end air bleeds mix extra air that bypasses the jets and main venturi ONLY when you are WOT. If they are too big the result could be way too much jet to compensate because the oversized AB is leaning you out. I am not a carb expert and cannot speculate what AB's you have but please remeber this....the HIGH END AB'S ARE THE 4 INSIDE ONES".
Leave the 4 outers alone because they are only for idle. Once you read the AB size (ie:.041 or.072) call you custom carb builder to determine how much you can lower the AB size to richen the WOT air/fuel mix. Some folks speculate 2 AB sizes can equal 1 jet size. You can wind up with 80F/88R and have good /fatter AF at WOT using the AB's for tuning. This worked for my custom 750HP but each carb(AB size to jet size) may be slightly different. Let's say you go down smaller in AB's F/R by 4 sizes then dyno again and AF is good. Now for the off idle roll out. THE STUMBLE CAN ALSO BE TUNED OUT. Once your AF is good at WOT say in the AF in 11's go down again in AB's (ie: 2 sizes for 1 jet as a start/maybe front AB's only 2 sizes smaller than the 2 rears) . This of course will make you WOT a bit too fat. Then again LOWER your front jets 1-2 sizes and your around town will remain crisp while WOT will be on the money. I would advise NOT experimenting with AB's unless you are back on the dyno because they can have dramatic effect on WOT. Heck..that custom carb shop should give you a pocket full of AB's so you can tune out their error. AB's look like mini carb jets. Again go back to the dyno. You do not want to be TOO LEAN up there on top! It seems you are alot closer to much more HP !