I'm building a 3.1L and I was looking at the intake ports on the heads. In every port there is a large hump restricting flow. I know it is there for a reason, but for what reason I don't know. Should I grind them down or leave them? The engine is going back stock.
engine reguild
Aug 15, 2003
2 Replies
Leave them alone, they are there to help direct the incoming air charge so if you remove them power and economy will suffer.
you said it " I know it is there for a reason" :)
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