I need advice on drilling out the main oil passage. I have the 5/8 pick-up tube, is it safe to drill the long passage to 5/8 or should it be 9/16? Can it be done with the block assembled? What is the best procedure? any other advice? Thanks!
Go to www.trishieldperf.com Jim Weise has a section out there with Tech Tips. Has the info you need. I just did this myself 2 weeks ago. :TU:
