9
Pro-Flo EFI Installation Instructions
©2008 Edelbrock Corporation
Brochure No. 63-3527
Catalog #3527, #3528
Rev. 8/08 - AJ/mc
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 unit from the fuel tank. Refer to the RETURN FUEL LINE methods above for
installing the bypass fuel return line.
5.
Install the provided 3/8-inch primary fuel line directly above the original line, which may
now serve as a return line. Use large radius bends. Avoid the exhaust pipe and any
sharp edges.
NOTE:
The 3/8” Pro Classic high pressure fuel line supplied with the Pro-Flo system
must be used as the primary fuel line. See the following section for assembly
instructions.
6.
If you do not use the original fuel as the return line, route the return line directly
alongside the provided 3/8-inch primary fuel line.
7.
Mount the fuel pump between the tank and the fuel filter as low and as close to the
fuel tank as possible. The pump is directional. Electrical connectors should face the
front of vehicle. The fuel pump needs to be at or
below
the bottom of the fuel tank.
8.
Mount the fuel filter between the fuel pump and the engine.
9.
Re-install the modified sending unit plate to the clean fuel tank.
10. Reinstall the fuel tank.
11. Attach the primary line and return line to the sending unit plate on the tank.
12. Re-attach all other fuel lines at the tank (vapor purge lines, etc., if so equipped).
13. Secure the primary and return fuel lines with the provided tie-wraps, or with Adel clamps if
available.
14. Re-attach all fuel lines to the induction system once it has been installed.
15. Use the 10-foot wiring harness to connect the fuel pump to the Main System Harness. Route the
harness away from the exhaust pipe and any sharp edges. This harness may be cut to length.
Replacement terminals are provided with the Pro-Flo XT system. Cover the connection to the
positive terminal with the sleeve and tie wrap provided. Refer to the MAIN SYSTEM HARNESS section of this manual for details.
16. Before starting the engine, turn the ignition key to the ON position 4 or 5 times to prime the electric fuel pump, fuel lines, and fuel rails. You
should hear the pump run for approximately 2 seconds each time. Check the entire fuel system for leaks. Refer to the SYSTEM START-UP
section of this manual for details.
