I really want to try this sprock 310 kit I got for the Z but I can't shell out the $$$ right now for a new pipe and carb. What I do have is a PWK 35 mm carb but would like some input on where to start jetting. I also have my stock head pipe and doing the wrench report phase 1 mod should get me in the right direction, eh guys? Anyone hack their head pipe before and have better performance? Please remember I am on a budget of $0 so the jets and air filter will have my crazy wife flippin out on me. I also found a couple of interesting tid bits about the PWK 35. See here in these links.
http://http://www.patriotracing.net/250R
http://http://www.mossbargerracing.com/tuning.htm