Product Summary

EFI Fuel System Type, Throttle Body Injection Style

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    Key Specs

    MFG. Part #300-310
    Injection StyleThrottle Body
    Intake Manifold TypeHi-Ram
    RPM Range1,500-7,000
    Material TypeAluminum
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    Need To Know

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    Holley 300-310 Details

    This EFI 351W Hi-Ram manifold comes with a 105MM 1986-95 Ford 5.0 throttle body flange side mount top. The runner length and tapered cross-section design will perform well for a wide range of engine combinations. The engineering team also redesigned the water crossover passage to allow room for distributor phasing. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod applications and more! Manifold is designed for a 9.5" deck height.

    • Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations
    • EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits
    • Cast aluminum construction

    *** Requires the Use of Holley EFI Dual Sync Distributor - 565-111

    Features:

    • EFI fuel rails are machined for -8AN o-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.
    • Plenum Top Gasket Type û 3/32ö Round O-ring Cord
    • Manifold is designed for a 9.5" deck height.
    • The 351W manifold is available to work with 105MM throttle bodies
    • Ford 5.0 throttle body fitment
    • Lid has been verified to fit under Cervinis 2.5ö cowl hood on 1979-1993 Mustangs with 351W & 302W Hi-Ram bases when using motor mounts that retain stock engine locations.
    • Designed for side mounted throttle bodies
    • Allows room for designing boosted applications
    • Requires the Use of Holley EFI Dual Sync Distributor - 565-111

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Holley 300-310 Specifications

    KEY SPECS
    MFG. Part #300-310
    BrandHolley
    Injection StyleThrottle Body
    Intake Manifold TypeHi-Ram
    RPM Range1,500-7,000
    Material TypeAluminum
    GENERAL
    Fuel System TypeEFI
    FinishSatin
    Throttle Body Bore Size105mm
    Throttle Body IncludedNo
    Injectors IncludedNo
    Fuel Rails IncludedNo
    Sold in QuantityKit
    GTIN Code090127072660

    Questions & Answers

    Fitment

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