[Snakebit]

The f16 tubes are leaner than the f7 tubes. The f16 are 8.2mm in diameter and I think the f7's are 5.25? The set up I tried was:
40 chokes
120 holders
65 idle jet
f16 tubes
170 mains
225 airs

The set up was too lean, a lot of popping through the pipes. I switched to f7's with 165 mains and 200 airs. Popping was gone but above 2500 rpm it ran like crap. My guess it is still a little lean. I'm going to try 170 mains and see what changes.