Re: 69 Z, Headers, VS Stock Manifold and Chambered
The factory chambered exhaust has always had a reputation for being restrictive. If you drive on the highway much, the noise will quickly become annoying. I've run my spare M20 behind our L78 while having the original M21 rebuilt. Even with that engine I prefer the M20, especially in the city. What really helps a 302 to be drivable around town is the L79 cam.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now. 
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