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Speedmaster Downdraft EFI Stack Intake System Kit for Small Block Chevy

746-1-148-003K


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Downdraft EFI Stack Intake System Kit for Small Block Chevy
Downdraft EFI Stack Intake System Kit
  • Small Block Chevy
    Includes:
  • Downdraft EFI Stack Intake Manifold System
  • EZ-EFI 2.0 Fuel Injection Multi-Port Retro-Fit Kit
  • High-Impedance Fuel Injector
  • Velocity Stack Dome Air Filter Screens
  • Currently unavailable.
    This product is not available, please call customer service for options, at 1-800-345-4545.
    1-148-003K - Speedmaster Downdraft EFI Stack Intake Manifold Systems is rated 1.0 out of 5 by 2.
    Rated 1 out of 5 by from Injectors are the wrong length The o-rings passed the wall thickness of throttle body. Causing air to weak around the injectors. And the throttle blades are rubbing the o-rings. Looks good, but does not proform
    Date published: 2021-01-23
    • y_2024, m_4, d_26, h_5
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    • cp_1, bvpage1
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    • clientName_jegs

    how much fuel pressure does this system require and which pumps are recommended?

    Asked by: burb
    The Speedmaster 746-1-148-003K intake requires an existing EFI system.
    Answered by: jshook
    Date published: 2023-11-29

    Will this fit a 69 pontiac 400?

    Asked by: Brock brazie
    The Speedmaster 746-1-148-003K EFI does not fit a Pontiac engine.
    Answered by: jshook
    Date published: 2023-04-28

    Will this bolt up to a 383 and did you guys fix the injector issue 

    Asked by: Bubbles
    The Speedmaster 746-1-148-003K intake kit will bolt to a small block Chevy using '86 and older cylinder heads.
    Answered by: jshook
    Date published: 2023-03-03

    Will this work on a 350 tune-port

    Asked by: Coupe32
    The Speedmaster 746-1-148-003K stack kit will bolt to a 350 TPI.
    Answered by: jshook
    Date published: 2023-02-01

    Will this downdraft system work as a complete replacement for a carbureted LT-1 small block Chevy? 

    Asked by: joy695313
    Speedmaster 746-1-148-003K is designed to be used with an early sbc not the lt1
    Answered by: langus
    Date published: 2023-07-02
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    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
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