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WARNING! THE PUMP MUST BE PLACED WHERE INTERFERENCE BETWEEN THE VEHICLE’S BODY AND ITS CHASSIS MOVEMENT IS
AVOIDED. THE PUMP AND ITS CONNECTING HOSES MUST NOT BE SUBJECTED TO LOW GROUND CLEARANCE, WHERE ANY
FLYING ROCKS OR ROAD DEBRIS CAN CAUSE DAMAGE. FAILURE TO AVOID THESE HAZARDS WILL LEAD TO PUMP DAMAGE,
WHICH COULD RESULT IN FIRE AND/OR PROPERTY DAMAGE, SERIOUS INJURY, AND/OR DEATH.
1. Select a mounting site as close as possible to the fuel tank and away from possible sources of heat as detailed previously.
2. A template of the pump mounting holes is included on the last page. Use the included paper template and drill (4) ¼ holes.
3. Mount the pump (outlet pointing forward) using (4) ¼ bolts (bolts not included).
NOTE:
To ensure pump life and flow efficiency, a 100 micron pre-filter must be installed between the tank and the pump inlet. The filter should be
supported in such a manner that it does not hang from the fuel lines. Pre and Post filters can be mounted directly to the pump if space
allows.
4. Install the recommended AN fuel fittings. (Refer to the chart on page 1 for minimum recommended fuel fitting and hose size)
5. Connect the fuel supply line from the tank to the pre-filter and then
to the inlet port of the pump
. Connect the main fuel feed line to the outlet
port of the pump, then to the post filter. See
Figures 1a and 1b.
NOTE:
Avoid unnecessary restrictions, such as sharp bends and undersized fuel fittings and hoses. Avoid routing fuel lines in areas that would cause
chafing. All fuel line connections must be leak proof.
WARNING! IF SPLICING INTO EXISTING FUEL LINES, USE EXTREME CARE TO AVOID CONTAMINATING THE LINE WITH RUBBER OR
METAL SHAVINGS, AS THIS WILL DAMAGE THE PUMP. IF THE FUEL LINE HAS BEEN CUT, IT IS ESSENTIAL THAT IT BE
CLEANED TO ENSURE THAT NO METAL OR RUBBER PARTICLES ENTER THE FUEL SYSTEM. THIS IS PERFORMED BY
BLOWING THE LINE CLEAN WITH COMPRESSED AIR. HOLLEY DOES NOT RECOMMEND THE PROCEDURE WHERE THE COIL
WIRE IS DISCONNECTED, THE ENGINE IS CRANKED, AND THE FUEL IS COLLECTED IN A CONTAINER. SPARKING CAN OCCUR
DURING THIS PROCEDURE, WHICH MAY RESULT IN A FIRE AND/OR EXPLOSION.
WARNING! DO NOT OVER TIGHTEN THE FITTINGS ON THE FUEL PUMP. TORQUE the fittings in the pump as follows. (-8AN to 270-300
in./lbs. and -6AN to 150-170 in./lbs.)
USING A FUEL PRESSURE REGULATOR WITH A FUEL PUMP:
NOTE:
A return style fuel pressure regulator is required for use with the Holley HP fuel pumps. Please refer to the chart on page one for
recommended fuel pressure regulators. Refer to figures 1a,and 1b,for recommended plumbing scenarios. .
NOTE:
Refer to the installation instruction included with the fuel pressure regulator for steps on mounting and adjustments
NOTE: Depending on your application, choose one of the following examples:
Figure 1a (Carb applications only)
