If you go with the 250 crank You shouldn't have that much to zero deck. But be sure to get 250 pistons Not 230s with 250 crank. Their is a difference in the wrist pen hieght. As for the cam
To pretty much wipe out a lobe at 20K 1 of 2 things here come to mind Either a soft lobe Impropper harding(a OPPS) of the cam Or maybe a defalt in the brake-in(not enough brake-in Lube?)
Whos cam Maybe under some kinda warranty??
Hope this helps }[oooooo]
God doesn't like ugly.
