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FUEL PRESSURE REGULATOR
IMPORTANT: This regulator must use a fuel return line. The fuel return line runs between the fuel
bypass port of the regulator and the fuel tank. Fuel pressures cannot be adjusted if the fuel return
line is absent.
PARTS INCLUDED IN THIS KIT
SPECIFICATIONS:
VACUUM/BOOST
COMPENSATION PORT (3/16"
O.D. BRASS BARB FITTING)
OUTLETS TO INJECTION
(3 PLACES, 3/8" NPT)
UNUSED PORTS MAY BE
PLUGGED OR USED AS
GAUGE PORTS
BRACKET MOUNTING HOLES (2)
INSTALLATION INSTRUCTIONS
COMPETITION
FOR FUEL INJECTION
PART NO. 4305M
GENERAL INFORMATION
®
ADJUSTMENT SCREW
JAM NUT
REGULATOR CAP
REGULATOR HOUSING
INLET PORT FROM PUMP (AN-8)
FUEL BYPASS PORT (AN-8)
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Summary of Contents for Mallory 4305M
- Page 1 FUEL PRESSURE REGULATOR FOR FUEL INJECTION PART NO. 4305M IMPORTANT: This regulator must use a fuel return line. The fuel return line runs between the fuel bypass port of the regulator and the fuel tank. Fuel pressures cannot be adjusted if the fuel return line is absent.
- Page 2 INSTALLING THE 4305M REGULATOR FUEL LINE SIZE (FROM PUMP TO REGULATOR) RETURN LINE SIZE NOTE: If the fuel system will not prime properly, back the adjustment screw all the way out of the regulator until the system is primed. Then reinstall the adjust- ment screw.
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