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PERFORMER MULTI-POINT EFI SYSTEMS
for TBI-Equipped Chevrolet/GMC Trucks & Suburbans
®
Catalog #s 3562, 3563, 3564, and 3565
INSTALLATION INSTRUCTIONS
STOP!
BEFORE BEGINNING INSTALLATION,
READ THESE IMPORTANT NOTES…
❑ You must purchase a separate Edelbrock Fuel Pump Kit for this installation; single fuel tank
vehicles use Edelbrock #3581, dual-tank vehicles use #3580.
❑ Check the Kit Contents and Suggested Tools lists on page 2 to be sure that you have all
items necessary to finish installation.
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PERFORMER MULTI-POINT EFI KIT CONTENTS Qty. Description Qty. Description ❑ 1 Manifold assembly (see detail below) ❑ 1 3/8" NPT male to 3/8” NPT female 90 Degree elbow ❑ 1 Installation instructions ❑ 1 3/8" NPT to 1/2” hose brass fitting ❑ 1 EPROM adapter circuit board (#3562 only) ❑ 1 2 foot length 15/32 i.d vacuum line (power brakes) ❑ 1 Fuel injector wiring harness ❑ 1 6” length 3/8’ fuel line (breather line extension) ❑ 1 Fuel filter adapter fitting (filter to #6 AN male) with O-ring ❑ 1 1/2"
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IMPORTANT INSTRUCTIONS ® For ordering your FREE Edelbrock computer chip. You must use an Edelbrock chip with the Performer Multi-Point EFI conversion You must change the computer chip in your stock computer (ECU) for proper functioning and maximum performance with the Edelbrock Performer Multi-Point EFI for 7.4L or 8.2L Chevy/GMC engines. To receive your ECU chip, please complete the attached postage-paid card and send to Edelbrock. After receiving your card, Edelbrock will send the computer chi
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® INSTALLATION INSTRUCTIONS for Performer Multi-Point EFI System for 7.4L TBI-Equipped Chevrolet/GMC Vehicles Catalog #3562 and #3564 for 1987-1990 Model Years Catalog #3563 and #3565 for 1991-1995 Model Years � APPLICATION INFORMATION: Performer Multi-Point EFI Systems are designed for 1987-1990 (#3562 and #3564) and 1991-1995 (#3563 and #3565) 7.4L Chevy/GMCs originally equipped with Throttle Body Injection. These complete systems utilize the stock computer and throttle body unit for a simple
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INSTALLATION PROCEDURE 1. Disconnect negative battery cable. 8. The electronic vacuum regulator valve is mounted on the third bolt from the front, on the right side of the manifold. When you 2. Drain coolant. remove the bracket, there will be two support brackets running 3. Remove air cleaner assembly. from different locations on the backside of the A/C compressor, 4. Label all lines, wires, and connections with masking tape both meeting the manifold at one spot. Remove bolts and before disasse
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10. DISTRIBUTOR REMOVAL 12. FUEL LINE REMOVAL Remove plug wires from top of distributor cap. Make note of Remove two existing fuel lines hanging over the rear, near center location of each wire. Remove distributor cap. Before removal of of the engine block. On most late models (1992-1995), the fuel distributor, note the location of the distributor body and the lines are routed down the left side of the truck, coming down the ignition rotor by marking distributor body with a felt tip marker. bell
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13. INTAKE PREPARATIONS NOTE: On early models (1987-1990), the cruise control vacuum diaphragm bracket is mounted directly on the intake manifold. With fuel lines out of the way, scrape remaining intake gaskets For these models, it is necessary to relocate this assembly. Using off of cylinder heads and scrape both end seals clean. With GM part #14056623, mount this bracket to the left rear cylinder surfaces clean, install intake gaskets to cylinder heads. Use GM head. Install your diaphragm asse
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Tighten the manifold bolts following the tightening sequence If your vehicle has the bracket for the alternator and idler belt shown below. Torque to 25 ft. lbs. Install the distributor in the tension pulley, you need to install it at this time. Re-install engine. Using your marks as a reference, snug down distributor tensioner and bracket assembly. Re-install serpentine belt. clamp. Make sure tensioner bolt and bracket bolts are tight! NOTE: Final timing will be adjusted after engine start-up.
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16. HEATER HOSE SUPPLY LINE For all years, the heater core supply will come from the right front water port on intake manifold. You will need to install the 1/2" NPT-to-3/4" hose fitting into manifold using Teflon sealant on threads. Remove your existing heater supply hose at its junction point, usually at the heater core. Using the 3/4" heater hose and two clamps supplied, route the hose from the intake manifold to the heater core supply entrance. Some cutting of the hose may be required. Secur
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19. FUEL RETURN LINE INSTALLATION 21. THROTTLE BRACKET Install the 90° #6 pushlock fitting into the 10-foot length of hose On all vehicles with a vacuum actuated cruise control (1987- using the pushlock fitting installation procedures described 1991), you will need to install the throttle bracket supplied. previously. Tape off the open end of fuel line to prevent debris Install this bracket on the studded intake manifold bolts on the from entering. Route the open end (taped) of hose down the lef
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Pull rubber grommet off of wires. Force silicone (oxygen sensor- safe) through these four holes, filling them with silicone. 24. VACUUM HOSE Remove the factory molded vacuum line which ran from the MAP Install the grommet on air valve in groove to prevent dirt from sensor to the rear of the throttle body. Locate the 1/4" x 12" entering the system. vacuum hose, the 1/4" x 1/4" x 5/32" vacuum tee and the 24" of 5/32" vacuum hose from kit. Put one end of the 5/32" hose on the vacuum nipple of the f
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installed in manifold). Route hose and cut as necessary to 27. ACCESS FUEL TANK prevent interference with linkage. Tighten both clamps and For the TBI multipoint conversion, it is necessary to install a high- secure with tie wrap as shown. pressure fuel pump (#3581 for single tank vehicles, sold separately). IMPORTANT NOTE: On trucks with dual tank set- Brake Vacuum ups, it will be necessary to install Edelbrock Dual Fuel Tank Hose From Booster Conversion Kit #3580, available from your Edelbrock
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Note: There is a kit supplied with the 3501 and 3502 that provides you with new fuel line and clamps. Install the 3" length Fuel of fuel hose onto the 3/8" steel tubing where the old fuel pump Tank junction hose was previously. Use the 3/8" hose clamp to secure hose to steel tubing. 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 assembly into tank. Using a hammer and brass punch, gently st
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Note: The fuel line will be a very tight fit over the 3/8" tubing. It may be necessary to lube the tubing with some spray lubricant to ease hose installation. Slip the 5/16" clamp over the rubber hose, then insert fuel pump barb into hose and secure with 5/16" clamp. Be sure there is adequate clearance between the metal clamp and the electrical connections on the pump. Some shortening of the rubber hose may be necessary for proper alignment of the pump with the pump hanger. 3/8” Clamp New Hose 5
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31. INITIAL START UP Re-connect battery negative cable. Double check connections Retaining and fill radiator with a 50/50 mix (or manufacturer’s Clips recommendation) of anti-freeze and water. Turn key to the “On” position. You will hear the fuel pump run for a few seconds and stop as it fills the fuel system with fuel. There will be air trapped in system. At this time, inspect all fuel connections for leaks. If there are no leaks and everything looks good, crank it over. It might not start righ
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BASIC TROUBLESHOOTING 1. Engine Combinations a. If you assemble a combination of parts other than stock or the Edelbrock MPFI package called out in our catalog, your vehicle may not perform properly. b. Stroker motors are not supported. c. All engine assemblies must maintain stock compression ratios. d. A 190- to 195-degree thermostat should be used for optimum mileage, performance and emissions. Thermostats temperatures below 185 degrees should be avoided. 2. Engine Assemblies a. Heavy duty L19
