hello everyone I almost finished with my 302 buildup (1993 mustang coupe 302 HO automatic AOD) its a stock bottom end with an F303 cam, stock heads with port work, stock valves with 5 angle grind, stock lifters and pushrods, and 610 maximum lift springs matched to the cam. I bought a brand new set of Scorpion 1.6 roller rockers and have them installed and this is where I am stuck.
should I install them with shims? do I need a longer pushrod? how do I determine what pre-load I need?
should I install them with shims? do I need a longer pushrod? how do I determine what pre-load I need?