1964 Valiant "Get Runnin & Drivin"

RustyRatRod said

Nope. Gonna stick with the exhaust manifold. Nobody makes headers to fit the 170 anyway.

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I remember when I was running 225's, there were two different size outlet manifolds. We found the larger outlet exhaust manifold, and that along with the super six and cutting the head .100 really was like adding another engine to it.