2-Port EFI Fuel Pressure Regulator, 25 to 75 PSI

Designed for use on EFI systems requiring one feed line to fuel rails and one return line to the fuel tank. This 2 port regulator is adjustable from 25 to 75 psi and is capable of flowing 200+ gph. Fuel pressure will rise on a 1:1 ratio when boost referencing on all supercharged EFI applications. (1) 1/2" NPT Return Port, (2) 3/8" NPT Inlet/Outlet Port, (1) 1/8" NPT Fuel PSI Gauge Port.

Adjustable Carbureted Regulator from 5-12 lbs

Aeromotive carbureted fuel pressure regulators are true billet regulators. A convoluted diaphragm maximizes piston stroke and increases flow - without stressing the diaphragm. Every Aeromotive carbureted regulator incorporates a poppet design unique to that regulator, and we fabricate the diaphragms from our proprietary elastomer material Precision engineering and manufacturing translate into tight fuel pressure control.

Adjustable EFI/MPI Flow Command Regulator - 1993-98 MerCruiser 454/502 EFI Systems

Hardin Marine just added the MerCruiser 454/502 EFI Systems application to our line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified 454/502 EFI systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive features:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T6 billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances

Aeromotive Fuel Pressure Regulator 5-12 PSI

This regulator provides quick response and high flow for your high performance engines.

Aeromotive billet aluminum, adjustable marine fuel pressure regulators are specially designed for carbureted marine applications. Aeromotive marine fuel pressure regulators provide the quick response and high flow that your high performance engine needs. They're perfect for nitrous applications! The regulators re-seat after needle shutdown to prevent pressure creep and they're adjustable from 5-12 psi. They feature a corrosion-resistant black anodized finish, a 1/8 in. NPT gauge port, and a mounting bracket, plus your choice of a -6 AN O-ring boss or 3/8 in. NPT inlet/outlet ports. They are designed for gasoline applications.

Features:

• Pressure Range (psi) 5-12
• Regulator Style Non-return
• Regulator Location Inline
• Boost/Vacuum Reference Port No
• Gauge Port Yes
• Mounting Bracket Included Yes
• Fittings Included No
• Rebuildable Yes
• Inlet Quantity Single
• Inlet Attachment Female threads
• Inlet Size 3/8 in. NPT
• Outlet Quantity Single
• Outlet Attachment Female threads
• Outlet Size 3/8 in. NPT
• Regulator Material Billet aluminum
• Regulator Finish Black anodized

Carburetor Equipped Boost Reference Fuel Regulator

For those of you unfamiliar with boost referencing of a fuel system, well it's the ultimate way to meet fuel supply demands on a supercharged engine. By connecting a hose from your intake manifold to the top fitting of this regulator you can control fuel pressure on demand. You see for every pound of boost your engine generates it will allow the regulator to increase fuel pressure by the pound. These features have been used by professional race teams for years.

Chrome 4-1/2 to 9 PSI Regulator

This is Holley's most famous carbureted style fuel pressure regulator. The regulator features 3/8" NPT ports and includes a mounting bracket for attachment. This regulator allows you to adjust from 4-1/4 to 9 PSI.

Compact 2-Port Fuel Pressure Regulator (Up To 450HP)

This is a compact, affordable 2-port billet fuel pressure regulator. Featuring billet aluminum construction, stainless mounting bracket.  Suitable for engines up to 450HP. (1) 3/8" NPT Inlet Port, (2) 3/8" NPT Outlet Ports. 4.5 to 9 PSI adjustability.

High Performance 2-Port Fuel Pressure Regulator (Up To 650HP)

This is a terrific all around Billet 2-port fuel pressure regulator. Suitable for one dual inlet carburetor or two single inlet carburetors. For applications up to 650 hp. (1) 1/2" NPT Inlet Port, (2) 3/8" NPT Outlet Ports. Flows 150 GPH, 4.5 to 9 PSI adjustability.

HP 500 Flow Command Fuel Pressure Regulator (Red Color)

Hardin Marine just introduced the MerCruiser 454/502 EFI Systems application to its line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified 454/502 EFI systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive features:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances