Yes I have the B3 kit from mike. I have the shims with the short side facing the valves. Yellow duster the problem I am having is if I get the roller rocker centerd on the valve, the push rod Rubs the side of push rod cut out. Now if I shim the rockers wear the push rod is centered in the cut out in the head, the roller moves over close to edge of the valve stem. Now I dont think the roller will come of the valve it's just closer than I have ever ran before. The heads have been torqued down, but the engine has never been started . But if I have to pull the heads to grind the push rod tunnels more. No big deal about buying some more head gaskets.