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Discussion Starter · #1 ·
my 390 still has the stock 2v carb, what should the fuel pressure be at,reason being is my electric pump is preset at 7psi. but was wondering if its too high cuz i see some "stock" fuel pumps preset at 5psi. anybody know?
 

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Fuel Pump Static Pressure @ 500 RPM
223cid 3.5-5.5 psi
289cid 4.0-6.0 psi
352-427 4.5 - 6.5 psi

Minimum fuel pump volume @500 Rpm
223 1 pint in 30 seconds
289-427 1 pint in 20 seconds

Source 64 shop manual page 10-65
 
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