Edelbrock 1727 User Manual

PLEASE study these instructions completely and thoroughly before installing your new Edelbrock Fuel Pressure Regulator. If you have any questions
or problems, contact our Technical Hotline at: 1-800-416-8628, 7 am - 5 pm Monday-Friday, Pacific Standard Time.

CAUTION!
Installation of this product should be performed by those persons knowledgeable in the repair and modification of automotive fuel systems. Do not
loosen fuel system connections until relieving pressure as recommended in your automotive service manual. Fuel leakage will occur when
loosening fuel system connections, eliminate potential fire hazards before loosening any fuel system connections.

1.

With the ignition “off” and engine cool, relieve the fuel system pressure.

2.

Remove the fuel line, carburetor side.

3.

Determine the new regulator mounting location. Replace existing fuel lines as necessary for proper fitment. Mark and drill mounting bracket

holes using the bracket as a template.

5.

Install the fittings (Fuel fittings NOT included) as shown below. Coat the threads of the fitting with thread sealer (not supplied).

6.

Assemble the bracket and regulator.

7.

Install the regulator and bracket assembly in the desired location.

8.

Connect and tighten fuel lines to the inlet and outlet, as seen below.

9.

Install the plug (supplied) or connect a fuel pressure gauge to the gauge port using a 1/8-27 NPT male thread and thread sealer (not supplied).

10. Check for leaks: Start engine and check all connections for leaks. If any leaks exist, immediately turn key off and repair before continuing.

11. Start the engine, loosen the jam nut on the top of the regulator, and turn the adjusting screw until the desired fuel pressure is obtained. Tighten

the jam nut and re-check the pressure.

Brochure #63-0168
© 2009 Edelbrock Corporation

Part #1727

Rev. 7/09 - AJ/mc

Gauge Port
or Plug

Adjusting Screw*

Mounting
Bracket

Fuel In 
3/8” NPT

Fuel Out
3/8” NPT

Fuel Out
3/8” NPT

Russell fitting
#660460 shown

Fittings Shown:
Russell -6AN to 3/8” NPT Adapter
Part # 660460 (Qty. 3)

*NOTE: Thread adjusting
screw down (clockwise)
to increase fuel pressure;
thread adjusting screw
up (counter-clockwise) to
decrease fuel pressure.