Re: 283 Horsepower rating
Sorry about that. When I had to buy another engine to run in my car last year I was told(at a IHRA Divisional) it was the same as NHRA. That's why I went 327. IHRA has my combo factored less than NHRA. When I called IHRA about the factoring of my combo this year they said call NHRA we go off what they have.
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Ed Carpenter
2005 Chevy Cobalt A/SM
Race Engine Development
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