I've been trying to figure this out for awhile and can't do it. When i get on it, the first 3/4 of throtle of every gear its fine, but when i open it up to the final 1/4 it boggs like hell. I've had no problems with my setup until now.
I have checked the main jets (175-205), air screws (.5 turns-2 turns), compression (170-175), air leaks, and head o-rings. From those i cant figure out whats wrong. the only reason i havent changed the pilot and needle is that i have ran this exact setup in the same weather last year and it was fine.
cool head (19cc domes)
t-5's
v-force reads
28 keihns w/clamp ons
dune port
boost bottle (just kidding)
advance timing +4
thanks for all the help a head of time