My machinist told be to set zero lash and 1 full turn for pre-load. He's done it that way and said he's never had issues. Did that with mine but may back everything off a 1/2 turn just for the heck of it. Least until break in is over.


1966 C10 292/tko600 http://67-72chevytrucks.com/vboard/showthread.php?t=596643
1964 C20 292/sm420