Ok I bought a 500 rubicon. with 15,000 on it. motor in a box.
I am a tech and work on these all day long.
I polished the head, cut new valve seats and installed new valves. I ordered a web cam. stock piston just boed .010 over. Wanting white brothers pipe or another that is adjustable. Going to get twin air or uni air filter. Drilled holes in clutch wieghts to gain some stall (same as buying those expensive clutch springs).

I looked on internet to find a high comp piston, only to find high lifters. Good deal but did have enough info to convise me to go buy there's.

Has anyone here installed one of high lifters kits, good bad, anthing else I can do that someone else has tried and worked well?