[ENTDOC]

I soldered the idle jet to the holder so that worked ok. I now have; 37mm chokes, 150 mains, 55 idle jets, 200 air correctors and F7 E tubes, 16 degrees advance. It starts and runs very well, idles good with little or no black smoke(60 idle jets smoked a good bit) but under load I get a good bit of hesitation and backfire, popping. I have the idle circuit out 1 turn, they are balanced . Any thoughts? Sounds lean