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If you want quiet inside the car, DO NOT GO WITH FLOWMASTER. Or any other chamber styled muffler. You want a straight thru/fiberglass packed muffler. I replaced my Flowmasters with MagnaFlows (Dynomax would have worked too) because I was sick of the interior resonance. After a 30 minute...

prevents rust

But aren't the Hedman's fenderwell headers? If I was willing to cut the car, it would have had fenderwells 5 years ago when I built it with Spitfires. Call me crazy, but a street/strip car that's in perfect condition isn't my first choice for fenderwell headers.

1-5/8" stepped to 1-3/4" then into 3" collectors

Guys, Just wanted to let you all know that TTI will have their new UNDER-CHASSIS full tube headers for small block early A-bodies ready for sale in mid-April. Prices are $750 for ceramic coated, $779 for polished ceramic. I know because I already have pre-ordered my set.

I had my cheap-o Spitfire Headers coated a 4 years ago by Jet-Hot. Still look great.

I have the Spitfires on my 360 Valiant right now. They're better than cast iron manifolds, but not by too much. I'm running mid-12's thru them, but am ready to step up to the Dougs D-450's as the Spitfires are holding me back. Bigtime! If you're running a street car, the Spitfires will be...