Methanol fuels and castor based oils absorb water so as the engine cools it draws in moisture, it is quite possible this might have happened after I had my crash back in 2015 as was unable to service the bike as quickly as I normally would due to injury. Davidd helped out with the cams, they are not readily available, and certainly not a direct replacement in a road engine without significant rework of the engine, especially the valves and guide clearances...........lets just say you need at least a half inch of travel for safety. I had already made valves from Big Block Chevy valves where we moved the step on the stem further up by 0.080" this is almost mandatory for more valve travel in these engines.