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Old 10-23-2012, 01:20 PM
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Originally Posted by ap72 View Post
The stock pump from a monte carlo may be more than adequate for 400hp. Pressure has a lot to do with it, also the BSFC of the engine.
NA engines are around .4-.5 bsfc right? Most pumps I have seen are EFI which idk if there are any disadvantages to running that high pressure pump to the regulator then just let it run back the return. The calculator on walbro said 200 lph should be good for 400hp at .5 bsfc so even if I stepped up to a 255 lph which is a popular size I should be okay since I will have that return
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