Originally Posted by
hobdog
come on now, no one has done this? I guess everyone is out racing this weekend. I believe I have heard of someone using the jx case and the speed piston and sleeve, but I don't know real world results. Is the speeds case that much different from the jx case? Maybe I should just simplify this and get a new speed piston and sleeve. It always ran good, I just feel like I could use some more bottom end for some of these short run up jumps. I don't really even know that the jx piston and sleeve would do that, but I am sure someone around here does.
You could always just gown down a tooth on the cluthbell or tune your clutch for a little more punch for those short run jumps.