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05-26-2007, 12:10 AM
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#26 |
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Registered User
Join Date: Apr 2000
Location: Bonne Terre, Mo
Posts: 3,005
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Re: My $260 exhaust system is cancelled
I had heard the same thing about the valves sucking cold air before too. Sorta think that was before the harder valves used now or just a old farts tail. But also heard that for optium performance the engines were designed to have a certain amount of back-pressure. And that is why 2 1/2 or 3 inch exhausts were made.
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'69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629" |
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