To get the best performance, get a muffler with 2.2 cfm per horsepower. To run dual mufflers, take this amount and divide it by 2.
With this flow rate, the engine will think there is no muffler. Not all manufacturers have this listed because they fall behind when tested.
My recommendation would be any two Cherry Bomb mufflers(except the Turbo), a Dynomax Ultraflow, or a Dynomax Bullet.
And just so nobody thinks I'm crazy, the info listed at the top of this post is in the book, How To Build Max-Performance Chevy Small-Blocks On A Budget, by David Vizard
http://search.barnesandnoble.com/Ho...zard/e/9781932494846/?itm=2&USRI=David+Vizard
With this flow rate, the engine will think there is no muffler. Not all manufacturers have this listed because they fall behind when tested.
My recommendation would be any two Cherry Bomb mufflers(except the Turbo), a Dynomax Ultraflow, or a Dynomax Bullet.
And just so nobody thinks I'm crazy, the info listed at the top of this post is in the book, How To Build Max-Performance Chevy Small-Blocks On A Budget, by David Vizard
http://search.barnesandnoble.com/Ho...zard/e/9781932494846/?itm=2&USRI=David+Vizard
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