Bought a set of BAM solid roller lifters with the steel bearing. These are oil thru w/pushrod oiling. Assembled the valve train and primed the oil pump with my cordless drill. I have oil at the lifter, but not up the pushrod to the rocker. I called BAM and the gentleman tells me i have to make a mod to the lifter if this happens. Seems, if the lifter bore to lifter clearance is on the minimum, you may have to perform this mod. There is a couple oil holes in the side of the lifter on the machined surface that need to be connected. I think i can do this with a dremel and a small cutting wheel. You just have to make a very shallow groove he tells me, not much more than a scratch. Anyone here every have to do this?