valve prob.
i have a prob. with frozen lifters.i'm not sure if these froze but the last two sets have.i went to practice tonight and it blowed out the oil stick,which happened last year and i kept racing so it burt a hole in the piston last year,and the rocker ams arm a little loose[same problem as last post]everything is new in motor.it also kills plugs.i think somthing is wrong in the heads,anyone have a idea.thanks