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Porting the exhaust manifold

2.5K views 4 replies 4 participants last post by  2kblkGTP  
#1 ·
Do you guys think there would be any power to be gained by porting the exhaust manifold. I dont think it would be as much as a header but I think you could gain 5 maybe 10 extra horses by port matching the head and exhaust manifold. Also by opening it up a little to the exhaust side. Let me know what you guys think.
 
#2 ·
Check some stuff online first, I remember reading/hearing somewhere that the exhaust manifold is already port matched to the head. I could be wrong though. If I am, exhaust work on a supercharged car usually works well.