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What pressure is a Holley 19-385 regulated to, and is it adjustable?
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The Holley 19-385 product webpage (under "Specs") states the maximum fuel pressure is 80 psi.
EDIT: There's a 60 psi fixed fuel pressure regulator under the mounting flange (Holley EFI 12-160).
Originally Posted by Danny Cabral
Don't confuse psi ratings with what the pump is actually capable of.
The psi ratings are for performance (volume) information only; they're not a pressure setting.
EFI fuel pumps have a wide range of psi capability; you set the exact pressure you need/want.
Electric fuel pumps only produce volume, the fuel pressure regulator creates the desired pressure.
Also, any EFI fuel pump will decrease volume output (GPH flow) as fuel pressure is increased.
http://documents.holley.com/holleyfu...ems_chart1.pdf (Fuel System Selection Chart)May God's grace bless you in the Lord Jesus Christ.
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