On my MSD 2 step I cracked the same cylinder on TWO blocks in damn near the same spot on both engines.. I had
measured the walls on the block to try to eliminate different issues and as far as I know I couldnt find
anything wrong except the crack.. I was told later by a so called big time engine builder the the MSD 2 step
is hard on the block.. since that time I never used the 2 step.. now days I just put my foot to the floor
on the trans brake(stalled the engine at 6200 rpm) and never had a problem since
wave