Got some 289 rods that are drilled like the 69 351W rods. About a 1/4" spot on the bearing surface and then a tiny hole pointing up the rod at an angle. Any advantage here? I would have to drill my bearings to accomodate this little squirter hole. I have heard that this little trick made the 69 351W's oil the bottom very well, but then Ford(tm) stopped the practice almost immediately. Suggestions?