Holley 12-313 Features:

• Designed as a direct replacement for factory pick-up and sending unit
• Free flows 255 liters per hour (LPH)
• 0-90 Ohms pre-calibrated fuel sender is pre-calibrated to work with the factory fuel gauge
• 5/16 in. (.3125) inlet diameter
• Supports up to 550 HP
• Fuel pressure is internally regulated to 58 psi eliminating the need for an external fuel pressure regulator
• The module returns excess fuel right inside the tank so no separate return line is required
• HydraMat filter which has a unique internal reservoir that keeps fuel available at the pick-up and also provides protection from contaminants
• Can retain the factory fuel hard line by connecting to fuel pump module with EFI-rated hose

Note: Not pump is not compatible with pulse-width modulation (PWM)