OK, I did mine ala Mike Hamilton (see his web page)and it worked out amazing. I cut my oil pump shaft, rotated my bearings so the oil holes were plugged, and used a frost plug to seal the timing cover. My car is much more responsive, and I'd say it upped its power a bit. I would recomment (if I could do it again with the motor out) to get the engine externally balanced after the shafts were removed, just to be on the safe side.