I went from stock exhaust to fmf silencer and a uni air filter. I also tried no airbox lid and wasnt right nor was on. I put 4, 1 inch holes in lid. I jetted 2001 300ex from 122 stock main to 130 and 38 to 40 on pilot. I have tried 2 and 2.25 out from seated position on fuel screw. Fmf gave me the jetting for main but I bumped up pilot myself thinking I needed more fuel to air. I replaced the accelerator pump as well for it was corroded and spring was not so tight. I can’t seem to get a smooth idle, even messing with idle screw. It runs better when warm, too lean right? It warms up very quick which tells me it may be lean but also am reading stuff that’s telling me I’m too rich, boggy and hesitant, lost as to what step is next . Please help if have accurate info. Thanks a bunch, Bonz