Reply to "Boring 351C"

bosswrenchMember

I agree completely with George. Remember also that stock diameter fuel lines in the tank & sender will ALSO only support about 450 real horses, if a carburetor and high rpms are used. Typically, big horsepower only happens above 6000 rpms so when you run lean up high on the tach, your most useful tool may be a broom to clean up the mess!

Multiport EFI runs at 6-8X the pressure of a carb, which then flows a little more fuel thru still-smaller-than-desired stock steel fuel lines. Adding big lines only from pump to carb does approximately nothing to increase high rpm fuel flow. You're still sucking from the tank thru a small straw...

3/3/1812:05 PM

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