drill and tap each lifter bore (1/8 pipe) then use -3 fittings. get your self 2 1 in 8 out or 1 i 16 out dist block . drill and tap rear china wall to oil passage. Plumb the china wall to the dist block(s) . I used 3/16 brake line and -3 fittings throughout. I use a nitrous jet holder at the inlet of the block to regulate the oil. I use a .050 nitrous jet. Works pretty well and you have to be a good tube bender to fit it all neatly, but it can be done. I have nitrous direct port install experience so it was easy for me. You can buy all the parts you need from induction solutions.