Owner`s manual

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Some parts are not legal for sale or use in California on any pollution controlled motor vehicle.

Fuel Pumps/Management Systems

Holley offers heavy duty, high-output mechanical fuel pumps for street, street

strip, and all-out race applications. In addition to improved fuel availability,

Holley mechancial pumps are indexable to allow for better clearance and

plumbing in tight fitting configuations. We also offer the full line of Holley Fuel

Pressure regulators to mange the fuel flow and pressure from your fuel pump

to carburetor.

UNIVERSAL ADJUSTABLE FI REGULATOR

Ideal for imports, adjustable from 35-65 PSI.

Machined from billet aluminum, and is clear coat

protected.

Part No. 512-504-5

• Regulates from 4-1/2 to 9 PSI

• One 1/2" NPT inlet and two 1/2" NPT outlet ports

• .437" (7/16") restriction

• Includes mounting hardware and AN style fittings

Part No. 12-704

• Regulates from 4-1/2 to 9 PSI

• One -8 inlet port and four -6 outlet ports

• .437" (7/16") restriction

• Billet body & top casting cover are hard coat

anodized

• Three fuel pressure gauge mounting options (fuel

pressure gauge not included)

Part No. 12-707

CARBURETOR FUEL PRESSURE REGULATOR

Compatible for use with methanol/alcohol

• 3/8" NPT ports, .220" (7/32") restriction

• Includes mounting bracket

APPLICATION PART NO.

Chevy 200-229 V-6 12-327-11

Chevy 283-400 V-8 12-327-11

Chevy 396-454 V-8 12-454-11

Ford 289, 302, 351W 12-289-11

Ford 429, 460 12-460-11

Chrysler 318, 340, 360 12-360-11

Chrysler 383-440 12-440-11

Pontiac 350-455 12-389-11

DESCRIPTION PART NO.

Chevy S/B V-8 12-834

Chevy B/B V-8 12-835

Chrysler S/B V-8 12-838

Ford 289/302/351W 12-833

Ford 351C/351M 12-854

Ford 390, 427, 428 FE 12-832

Ford 429/460 V-8 12-860

Oldsmobile All V-8 12-836

Pontiac All V-8 12-837

STREET PERFORMANCE FUEL PUMPS (80 GPH)

Up to 80 GPH (free flow), 7-1/2 PSI shutoff pressure. Adjustable lower hous-

ing allows 360° rotation of fuel inlet/outlet fittings for custom installation.

Triple chrome plated.

RACE PERFORMANCE FUEL PUMPS (130 GPH)

DESCRIPTION PART NO.

4-1/2 - 9 PSI Satin 12-803

1 - 4 PSI Satin 12-804

Bypass Regulator 12-803BP

CARBURETOR FUEL PRESSURE REGULATORS

Calculating Fuel

Requirements...

...It’s Just

Simple Math!

Determining how much fuel your fuel pump needs to be able to provide is no

mystery. It’s comes down to mathematics. The engine in your car takes in air

and fuel and converts them to horsepower. To make this horsepower, your

engine will consume a certain amount of fuel referred to as the “Brake Specific

Fuel Consumption”, or BSFC. The BSFC is generally estimated to be 0.50 for

most naturally-aspirated (non-turbo/super-charged) engines.

However the calculation does not end there. Factors such as engine

RPMs, the diameter of fuel line and other plumbing restrictions, the

g-forces upon launch, line pulse created by pressure regulators and other

factors affect pressure output. Therefore you must factor in a safety

margin. Most professionals recommend a safety margin of 30%.

Remember, a properly regulated fuel system will not suffer from

too much fuel, but fuel starvation can be disastrous.

So do the math: Horsepower x .50 = Fuel needed per hour in pounds

(pph-pounds per hour). Gasoline is calculated at 7lb per gallon

Example - Engine that produces 400 HP @ 6,000 RPM:

400 x .50 = 200 lbs fuel equals 29 gallons @ 6000 RPM

APPLICATION HP SERIES ULTRA HP

SB Chevy 12-327-25 12-327-30

BB Chevy 12-454-25 12-454-30

SB Ford 12-289-25 12-289-30

SB Chevy, Alcohol ---- 12-327-35

BB Chevy, Alcohol ---- 12-454-35

SB Ford, Alcohol ---- 12-289-35

HP & ULTRA HP

MECHANICAL FUEL PUMPS

• HP Series flows 170 GPH,

Ultra HP Series flows

200 GPH (gas), 225 GPH (alcohol)

• Made from 6061-T6 aluminum

• HP Series has CNC billet finish

• Ultra HP is hard coat black anodized

for corrosion resistance

• Ultra HP pumps are rebuildable

• Bases are independently rotatable from

the top for ease of installation

STREET AVENGER

FUEL PUMPS (110 GPH)

High output fuel flow. 3/8” NPT inlet/outlet ports flow 110 GPH (free flow).

Shut off pressure pre-set from 6-1/2 to 8 PSI. Fuel body can be rotated.

Maximum fuel flow. 130+ GPH (free flow). Shut

off pressure pre-set 7-1/2 to 9 PSI. Inlet and out-

let ports are 1/2” NPT. Fuel body can be rotated.

Fuel pressure regulator 12-803 is required.

APPLICATION PART NO.

Chevy 200-229 V-6 12-327-13

Chevy 283-400 V-8 12-327-13

Chevy 396-454 V-8 12-454-13

12-360-11

12-327-13

12-834

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