>>>*Those should interchange nicely, all the setups using the aluminum rocker arms are the same.

Inspect the pads carefully, note that sometimes there is a small groove etched sideways on the inside edge of the pad.

This is caused by the cam lobe nose as it reached maximum lift. That can make a noise in operation. We use a strapping tool to rearc the followers, any machine shop can do this if they need to be refaced.

One point often missed is that is takes time for cool oil to refill the assembly at startup, and begin oil flow through the rockers, so use lots of good lube and make sure of good oil pressure at startup to avoid wear on the exhaust lobes.

Also note that oil flows through #3 rocker shaft tower, #2 & #3 can be reversed and if this happens the cam will fail...*EB