Damn Im having this issue currently. My 45's will idle good around 1000 rpm with throttle plates adjusted quite a bit forward of the 1st progression hole but bogs down as soon as I hit the gas and spits and sputters everywhere under about 3000 rpm. When I cover the 1st hole the transition is smooth but my idle is around 2000 rpm. I can go from a smooth 2000 rpm idle at 2.5 turns out on the mixture screws to under a 1000 rpm idle and running like crap at 2 turns out. Also Im getting alot of gas in the air horns with it set like this. I wonder if I switch to a 50f9 from a 55f9 would it help any. I would hate to have to drill holes in new carbs.
Brian
36 chokes
F 16 E tube
145 main
55F9 Idle
170 air corrector