How much HP, and a tweak
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Joined: Aug 2007
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From: Ohio
How much HP, and a tweak
i know the stock 400's have around 169 hp. well, mine is healthy, and it has a Holley 4barrel, i think 650CFM, edelbrock performer intake, not sure of anything after that not sure what else the guy did before me(but lets supose there isnt anything). how much HP & torque are u guys thinkin, and what about after a set of headers? and i had previously asked about some timing stuff, well, can i get some more umph by, just changing the timing without buying anything new?
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