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My friend with the CB750F was wondering about some carb adjustments after dynoing with us. He is running CR Special Keihin's that are 33mm 65 pilots-130 mains-220 air- 1 turn out on the air screw- needle in the middle position (7 slots). He is also running a Vance+Hines 4 into 1 drag pipe, dyna coils, and separte K&N filters on each carb. He was lean idle off and way rich up top. Anybody that was there saw and heard it breaking up. He was told to drop 2 on the mains, go up 1 on the pilot, and then play around with the air screws. He thinks that the 130 to 128 is one jet size, I said 130 to 120 is one jet size. Are these carbs different in jet sizing compared to regular carbs for some reason? I told him to try his friends 117's on the outsides and 118's (or 120's) on the insides as he is running 130 all the way across. And to also put the 68 pilot back in. If anybody has any input please reply.