A stock 250r pulled 24hp on this dyno just for reference bc all dynos read different
mine dynoed max 39.5 fattened her up a little she rested at 38.37hp.
I have a cool head running pump gas race gas is to expensive
tc mid to top portjob
265 bore
boyseen powervalve setup
38mm as carb
Fmf fatty pipe power core 2 silencer
weather 65ish 60-70% humidity
we had a good time tried it with out the lid but made less hp. They were pretty impressed with the results and the power curve ad am I.