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Fig. 8
Fig. 9
© 2007 Edelbrock Corporation
Brochure No. 63-641580
Edelbrock Corporation, 2700 California St., Torrance, CA 90503
Tech Line: 800-416-8628
E-Mail: Edelbrock@Edelbrock.com
18. Connect other large (12 gauge) red relay wire to
positive(+) battery terminal.
19. Connect small pink relay wire to 12V switched (key-on)
power supply (e.g. terminal in fuse box or splice on
ignition switch).
20. Connect black relay wire and black fuel pump lead wire
to good chassis, engine, or battery ground.
SET-UP & OPERATION
21. Turn ignition on, but DO NOT START ENGINE. Check
system thoroughly for leaks.
immediately if a leak is present and repair leak. Factory
preset fuel system pressure for edelbrock fuel pump
(1791) is 6.5 psi. The fuel system pressure can be
externally adjusted from 5 psi to 10 psi. refer to
Edelbrock fuel pump 1791 instructions for further
details.
22. Start engine and evaluate system operation. Re-adjust
fuel pressure if needed.
23. After a few driving cycles, re-check for and repair any
leaks present. Check fuel system pressure and adjust
the fuel pump, if necessary.
Page 4 of 4
Turn ignition off
Catalog #641580, 541583, 641590, & 641593
Rev. 10/07 - AJ/mc
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