Mallory 140 Fuel pump to holley 750, is a return line needed??
03-15-2001, 06:27 PM
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Mallory 140 Fuel pump to holley 750, is a return line needed??
Im confused on the new setup i have. I converted from tpi to carb and ive got a mallory 140 giant pump pushing to a holley 3 port regulator then it goes to the holley 750 double pumper. How do i run a return to the tank. The regulator has a IN and two OUTS on it, does one out goto carb and the other back to the tank?
[This message has been edited by Wayquick4u (edited March 15, 2001).]
[This message has been edited by Wayquick4u (edited March 15, 2001).]
03-15-2001, 06:43 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The TPI had a return line to the tank - just use that line.
I'm not sure exactly how your regulator is marked, but one should be "out to carb" or "out to engine" (the regulated pressure) and the other "out to tank" or "return".
------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, TBD heads, Hooker headers & y-pipe, 3" Catco cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.
I'm not sure exactly how your regulator is marked, but one should be "out to carb" or "out to engine" (the regulated pressure) and the other "out to tank" or "return".
------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, TBD heads, Hooker headers & y-pipe, 3" Catco cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.
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