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Old 06-09-2010, 08:34 PM
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i have a 1969 chevy 307 sbc. bored .030 1.94 heads 4bbl 750cfm carb leafed pistions and a mild cam what is the estimated horsepower on this engine????

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Old 06-09-2010, 08:41 PM
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I'd say around 240-260. But that seems like a big carb for a 307.
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Old 06-09-2010, 08:56 PM
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Your info is far to sketchy. What casting numbers are the heads? the pistons are "rebuilder" pistons with reduced compression height so we know the compression ratio is low. "mild cam" doesn`t tell us anything either.
To give a estimate on power we need the whole combo from top to bottom. Does it have headers? what exhaust system? What ignition? 750 is too much carb for a little 307. Tell us the whole combo and we can give you a close estimate.
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