It looks like you can adjust the transition amount with a screw. Maybe try that before a different jet.
My limited experience with small two barrels has shown lots of makers use these transition ports to help the transition from the primary to where the main jet takes over. This pic makes it look like Weber used a few holes/ports but it’s the first I’ve seen where you can tweak the amount.
It gives me ideas for one of my “projects.”
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Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
83 Wing, in pieces
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