
07-15-2010, 08:35 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
I have used the Stainless Specialties and the Classic Chambered. I keep the Classic on the shelf now as I'm so impressed with the results.
http://www.classicchambered.com/clas...rformance.html
It's the cheapest horsepower you'll free up on these engines.
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