I got it to run pretty good today with the pwk but just not right.the pipe has a bunch of potential.The 38mm gave more topend and rev .I put the stock back on.I couldnt believe how much low end and midrange i got from it.But now its kind of flat on the top.Also i change power valve to be stiffer made a huge difference.Im going to put my fmf back untill i get the mikuni 38mm.Also have you do my head work and porting and change my cage to something else.I know i havent had as much top end since the rad valve.But it made huge difference with fmf setup.But what would be the best carb for this.Minkuii 38 tm or something else.I want to stay with something that is pretty easy to tune and not have to change the jetting for every little weather condition.Kiehin is just to picky for me.