I have a 790 speedmaster with dynojet needles and springs with 130 mains and 42s, with short TORs and drilled air box now. I have dual K&Ns on order and I am going to build my own freak kit. Yes I know about the jetting calc but it does not address the dynojet needles and springs. Anyone have first hand experience? I am thinking 145 and possibly changing to bigger idle jets as I am out 4 turns on the mixture adjustment now before the K&Ns and still a bit lean. Pulls hard all the way but steady 4000rpm is very rough
