PowerPipe Exhaust for slant/6

pishta said

Wow, I heard the 6 cant even fill the stock exhaust manifolds, let alone headers. But Ill soon find out....

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Who did you hear this from? The stock exhaust manifold is an extremly restrictive design. I put long tubes on a 67 Dart with a 225 and it upped the power quite a bit,and I was still running the stock 1 bbl. Saw about a 5 mpg. increase to boot.