Edelbrock 3581 Installation Instructions

PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and
procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this installation,
it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical Hotline at:
1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at Edelbrock@Edelbrock.com.
IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation
will void your warranty and may result in poor performance and engine or vehicle damage.
DESCRIPTION: This Fuel Pump Kit is necessary to complete the installation of all Performer Multi-Point Fuel Injection (MPFI) systems for 1987-95 TBI-
equipped Chevy/GMCs with single fuel tank (except 1995 Tahoe, which may use the original equipment fuel pump). Dual fuel tank vehicles must use
Dual Fuel Pump Kit #3580. Installation of this part is covered in the Performer Multi-Point Fuel Injection System installation instructions. For your
convenience, we have re-printed the fuel pump installation portion of those instructions here.
1. FUEL PUMP INSTALLATION
For the TBI multipoint conversion, it is necessary to install a high-
pressure fuel pump (#3581 for single tank vehicles, sold separately).
IMPORTANT NOTE: On trucks with dual tank set-ups, it will be
necessary to install Edelbrock Dual Fuel Tank Conversion Kit
#3580, available from your Edelbrock dealer, or call Edelbrock
directly for sales or dealer assistance. Dual tank vehicles do
not require removal of the tanks or pick-up bed, as the new fuel
pump kit #3580 mounts on the vehicle frame. See installation
instructions supplied in kit.
To install pump
#3581 on single
tank vehicles, you
must gain access
to the top of your
fuel tank. If you
have a Suburban,
you will need to
drain the fuel tank
and drop from the
rear of the vehicle.
If you have a truck,
we recommend
removing the bed
to reach the fuel
tank. On truck
beds, you will
usually find eight
mounting bolts,
two ground wires,
a couple of
weather pack electrical connectors (near license plate area), and
you will need to disconnect your fuel fill neck from the bed. With all
Catalog #3581
Rev. 7/06 - RS/mc
®
INSTALLATION PROCEDURE
Ground
Connections
Fuel Tank
EDELBROCK SINGLE TANK FUEL PUMP KIT
For Performer MPFI Installations (Except 1995 Tahoe)
bed bolts and wires disconnected, four people can lift off the bed.
This takes about 20-30 minutes, which is much faster than draining
and removing tank.
With bed removed
you will see top of
the fuel tank. Use a
cleaning brush and/
or compressed air
and clean the top of
fuel sending unit
area so no debris
enters the fuel tank
when removing this
assembly. Disconnect two fuel lines, two hoses, and an electrical
connection with a ground wire. There is a center fuel pump sending
unit assembly lock ring holding the assembly into the tank.
Using a hammer and brass punch, gently strike open edge of lock
ring in a counter clockwise direction. Keep hitting until lock ring
rotates enough to release. Again blow or brush top area clean and
carefully remove the entire assembly.
Be careful on removal! Take your time!
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Catalog #3581

INSTALLATION INSTRUCTIONS

©2006 Edelbrock Corporation
Brochure #63-3581