When I picked up my L33 the guy already had it hooked up, can't remember how. I have my intake removed and looking at the two front and rear bolts that hold the valley cover down. It looks like good points to attach my engine leveler to make a couple of trial fits. The reason I'm asking is that the L33 is aluminum and I want to be sure I don't damage the block. Has anyone used these attachment points on an alum. block engine.