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TABLE OF CONTENTS
Part #3527 and #3528
Introduction.................................................................................................................................................1
Components................................................................................................................................................2
Preliminaries.....................................................................................................................................
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PRIMARY KIT COMPONENTS ❑ Electronic Control Unit/System ECU ❑ Fuel filter ❑ Calibration Module ❑ Fuel rail assembly ❑ Distributor conversion kit ❑ Fuel pressure regulator ❑ Fuel injectors ❑ High pressure fuel pump ❑ ECU power relay/Fuel pump relay ❑ Intake manifold ❑ Manifold Absolute Pressure (MAP) Sensor ❑ Four barrel air valve ❑ Manifold Air Temperature (MAT) Sensor ❑ Idle Air Control (IAC) solenoid, integrated with air valve ❑ Coolant Temperature Sensor (CTS) ❑ Main system harness ❑ Throttle
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TOOLS AND EQUIPMENT HARDWARE AND PARTS RECOMMENDED Use the following checklist for items needed. Use the following checklist for items needed. ❑ Box and open end wrenches ❑ Intake gasket; #3527 kits use Edelbrock gaskets #7201; #3528 kits use gaskets #7235 ❑ Socket set ❑ Pipe plugs, if needed ❑ Distributor wrench ❑ 5/16-inch steel tubing (approximate equal length to fuel pickup ❑ Pliers (channel locks and hose clamp) line in tank) ❑ Screwdrivers (regular and Phillips) ❑ Edelbrock Gasgacinch #930
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MANIFOLD & CARBURETOR HEIGHT VS. PRO-FLO XT HEIGHT 1. Lay a straightedge (such as a yardstick) across the top of the air cleaner from front to back. 2. Measure from block and manifold end seal surfaces to straightedge. 3. Record these measurements (height A and height B). 4. Add height A and height B and divide by two to get the average height. 5. The Pro-Flo XT manifold is 9” tall at the center and 9.125” at the throttle body flange. 6. Compare this to your original measurements. If the Pro-Fl
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FUEL REQUIREMENTS Because the Pro-Flo XT system uses an Oxygen sensor, you must use unleaded fuel only. Leaded fuels will damage the O sensor. If you do use 2 leaded fuel in your vehicle, do not install the O sensor and do not operate the vehicle in the closed loop fuel mode. 2 AUTOMATIC TRANSMISSION CHECK For best performance, economy, and emissions, the shift point must be checked before and after the manifold change. NOTE: This check should be performed ONLY at a sanctioned drag strip or tes
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FUEL SYSTEM Because your Edelbrock Pro-Flo XT system controls fuel delivery very differently than a carburetor, some conversions to your fuel system are necessary. Pro-Flo XT electronic fuel injection requires high and constant fuel volume and fuel pressure. For this reason, a good primary fuel line is critical. The Pro-Flo XT system includes a 3/8-inch high pressure fuel line which must be used as the primary fuel line. The fuel that bypasses the injectors must be returned to the fuel tank vi
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RUBBER RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line enters the tank. This will be the hole for your return line. Insert a short length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The hard line should extend through the hole 1 to 2 inches on each side of the plate. Connect a length (at least 4 inches) of 5/16-inch rubber return line hose to the hard line that will extend into
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BULKHEAD FITTING METHOD HARD RETURN LINE METHOD Drill a 5/16-inch hole in the sending unit plate adjacent to where the main line, enters the tank. This will be the hole for your return line. Insert a length of 5/16-inch hard line (available at most radiator shops) into the hole and weld it to the sending unit plate. The hard line should extend through the hole 1 to 2 inches on the outside of the plate. On the inside of the plate, the hard line should follow the contours of the fuel pickup line.
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NOTE: ALL WELDING AND SOLDERING OF THE FUEL SYSTEM MUST BE PERFORMED BY A PROFESSIONAL RADIATOR AND/OR FUEL SYSTEM REPAIR SHOP. FUEL SYSTEM INSTALLATION 1. Drain the fuel tank. 2. Remove all fuel lines from the tank and from the carburetor. 3. Remove the fuel tank. NOTE: While the fuel tank is removed from the car, it is recommended that it be professionally cleaned in order to remove any rust or dirt that may have accumulated inside and which could damage the injectors. 4. Remove the sending u
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ASSEMBLING PRO-CLASSIC HOSE Step One: Cut hose to length, Step Two: Unscrew socket Step Three: Apply Russell Step Four: Hold socket/hose in as straight and square as from hose end. Push hose into assembly lube to threads on vise. Turn nipple with wrench possible, with razor blade-type socket, turning counter- nipple assembly and in socket. until there is less than 1/16" hose cutter or shears. clockwise, until hose is seated Insert nipple into socket/hose between nipple hex and socket. against s
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PRE-INSTALLATION Before installing the induction system, take the following steps to ensure successful installation and performance 1. Check all components thoroughly for damage. 2. Make sure all throttle linkages open entirely and close freely. 3. Make sure all fuel inlet and vacuum ports are free from packing material. 4. Check the installation kit for proper parts. REMOVING THE STOCK CARBURETOR AND MANIFOLD 1. Disconnect battery. 2. For ease of installation, keep all parts in order. CAUTION:
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GASKET SURFACE PREPARATION CAUTION: Replace all gaskets as recommended. Do not use race-type non-embossed gaskets for street applications. Due to material deterioration under street driving conditions, internal vacuum and oil leaks may occur. We recommend Edelbrock gasket #7201 for kit #3527 and #7235 for kit #3528. Do not use Fel-Pro Permatorque Blue gaskets, which are designed for use on stock cast iron intake manifolds only. 1. Check gaskets on head surface and manifold to make sure they a
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SENSORS The Edelbrock Pro-Flo XT system interprets overall engine operating conditions and fuel/spark requirements based on readings from sensors that measure specific engine conditions. The Pro-Flo system includes five sensors: 1) Manifold Absolute Pressure 2) Manifold Air Temperature 3) Coolant Temperature 4) Throttle Position 5) Exhaust Oxygen (O ) 2 MANIFOLD ABSOLUTE PRESSURE SENSOR The Manifold Absolute Pressure sensor, mounted on the intake plenum, converts air pressure (load) in the m
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THROTTLE POSITION SENSOR The Throttle Position Sensor, an integral part of the Pro-Flo throttle body, measures throttle angle. COOLANT TEMPERATURE SENSOR The Coolant Temperature Sensor is a thermistor device like the Manifold Air Temperature sensor. Resistance varies as coolant temperature rises and lowers. The Coolant Temperature Sensor is located at the front of the manifold on the driver’s side. OXYGEN (O ) SENSOR 2 An oxygen sensor, installed on the header collector pipe, measures exhaust ga
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O SENSOR INSTALLATION 2 The exhaust gas oxygen content is determined by the oxygen sensor. The sensor signals the ECU, which compensates when the air/fuel mixture is either rich or lean. NOTE: It is recommended that the O sensor installation be performed by a professional muffler shop. 2 1. Double check header gaskets, replacing if necessary. 2. Drill a 1/2-inch to 9/16-inch hole in the passenger-side header collector reducer, as close to the header flange as possible. (1" to 3" away) NOTE: Bef
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ENGINE HARNESS LAYOUT Catalog #3527, #3528 16 ©2008 Edelbrock Corporation Rev. 8/08 - AJ/mc Pro-Flo EFI Installation Instructions Brochure No. 63-3527
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MAIN SYSTEM HARNESS This diagram illustrates the chassis side of the Pro-Flo XT Main System Harness. Catalog #3527, #3528 17 ©2008 Edelbrock Corporation Rev. 8/08 - AJ/mc Pro-Flo EFI Installation Instructions Brochure No. 63-3527
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Catalog #3527, #3528 18 ©2008 Edelbrock Corporation Rev. 8/08 - AJ/mc Pro-Flo EFI Installation Instructions Brochure No. 63-3527
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MAIN SYSTEM HARNESS This diagram illustrates the engine side of the Pro-Flo XT Main System Harness. Catalog #3527, #3528 19 ©2008 Edelbrock Corporation Rev. 8/08 - AJ/mc Pro-Flo EFI Installation Instructions Brochure No. 63-3527
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Catalog #3527, #3528 20 ©2008 Edelbrock Corporation Rev. 8/08 - AJ/mc Pro-Flo EFI Installation Instructions Brochure No. 63-3527
