How do you oil the heads i use 2 pipes into a T piece that goes to the oil pressure switch hole on the back of the engine then i drilled through the back of the head into the last rocker bar mounting hole tapped to 1/8" screwed in a couple of elbows , in the elbows i screwed & loctited 2 grub screws with a 1/16" hole drilled in each seem to get plenty of oil