[Tom Goldman]

Bob, If you go on the Holley web site you can find a chart that lists the factory air bleeds for your carb.....I'd check to see if they have been changed in size ,especially the hi speed........ With all the other mods to the carb it's possible they have been changed as well. ...... Changes to the air bleeds can have a huge effect on jet selection.....The specific gravity of the fuel you're running will also dictate where you should go with the jetting. ....generally the higher the specific gravity the leaner you go with the jetting,but we're talking only 1 or 2 jet sizes .......Stay on the fat side to start ,better to look like a diesel on your first passes,than hurt a piston.......Tom