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  1. W

    should I use manifolds or headers????????

    Ron is exactly right. When I pulled my headers in favor of HP manifolds, my mixture was really fat, before any other changes. Jetted down and the thing runs great. Never going back to headers for the street. My race car is a different story though.
  3. W

    should I use manifolds or headers????????

    I just removed the headers and installed '68 HP manifolds on my 496" six pack engine. I also wanted it to appear more "stock". I'm sure there is some, but, I can't really tell any power difference on the street, but there is a definite sound difference. That "tinny" header sound and the header...
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