
04-19-2006, 03:05 PM
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Backdraft Racing Dealer
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Join Date: Dec 2004
Location: North Haven,
CT
Cobra Make, Engine: Backdraft Racing
Posts: 5,124
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Not Ranked
With those numbers depending on your transmission and air cleaner setup your motor is probably closer to 310-320HP. There are a lot of different ways engine builders today make their HP claims. A "California Dyno" for instance would be open pipes, no front accessories, electric water pump, etc. or it might just be a piece of software 
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