Hello, i’m rebuilding a 1992 Chevy TBI 350 and was looking at the COMP Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .479"/.465"
Duration 279/297
RPM Range 2000 to 5800 is there anything else i need to change when installing this cam? like valves, piston's, heads?

 

Great result in my opinion! I guess you can still change the exhaust system . I did. It helped me a little. But I want to tell you the prices are not cheap. But there are stores where you can get them a little cheaper here. I think you could try replacing the auxiliary control module for the engine control unit