[Tom Vaught]

Going to post up some information on a Fuel Pressure Regulator that has been used (for many years with success) on Boosted Holley Carburetors. At one time most on the Turbo Forums were using this regulator with their Blow-thru Carburetors.

I am providing the specs (taken from the Summit Info) for the regulator.

I will put a Bracket [ ] around the Key Information.

Brand: Aeromotive

Manufacturer's Part Number: [ 13202 ]

Part Type: Fuel Pressure Regulators

Product Line: Aeromotive A2000 Carbureted Bypass Regulators

Summit Racing Part Number: [ AEI-13202 ]

UPC: 684980000108

Pressure Range (psi): [ 2-20 psi ]

Regulator Style: [ Return style Regulator ]

Regulator Location: Inline

Boost/Vacuum Reference Port: [ Yes ]

Boost/Vacuum Rise Ratio: Very Important [ 1:1 ]

Gauge Port: No

Mounting Bracket Included: Yes

Fittings Included: No

Rebuildable: [ Yes ]

Inlet Quantity: One

Inlet Attachment: Female threads

Inlet Size: [ -10 AN O-ring ]

Outlet Quantity: [ Four ] could be used on a Tri-Power Boosted Carburetor System (3 used for fuel to carb bowls on Tri-Power, 1 used for gage).

Outlet Attachment: Female threads

Outlet Size: -8 AN O-ring

Return Attachment: Female threads

Return Fitting Size: -10 AN O-ring

Regulator Material: Aluminum

Regulator Finish: Red anodized

So the regulator has a lot of nice features.
One a Holley 4 BBL system you would have two feel lines to the bowls, one fuel pressure line for a gage, and one location plugged.

Of all of the specs above the most important one for the regulator is the 1 to 1 pressure rise capability. With each psi of boost you want the bowl fuel pressure to still be at 6 psi that the needles & seats and the float sees.

Tom V.