Big Block Rocker Shaft Shims

I got mine from Mancini and yes they do work. With milled heads, different valves, and different lifters, the angles on my solid lifter 273 were all wrong. Special length pushrods and shims corrected the problem. I think the new valves were longer than the stockers. Here's a link:

http://chucker54.stores.yahoo.net/rocshafshim.html