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Technical Any one running an Offenhauser Dual Quad High Rise?

Discussion in 'The Hokey Ass Message Board' started by CPT_Kill_Roy, May 9, 2019.

  1. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    I just installed a SBC Offenhauser Dual Quad 360 High Rise intake. It looks like it was designed to only allow a Distributor with out a Vac can on it. So what did y’all use?
    I have a brand new Delco style Pertronix distributor. Can I remove the vac can on it? I don’t run it hooked up any way. Maybe there’s a lock out bar I can put in it? My other option is to grind away the back of the intake to allow clearance for the vac can. At this point the distributor won’t move advance or retard.

    This is the Motor spec.
    283
    30-30 cam
    Dual Small neck AFB carbs.
    Deep groove Corvette pulleys
    Low gears/4 speed/light fly wheel
    2300# car
    *Racer not cruiser




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  2. midroad
    Joined: Mar 8, 2013
    Posts: 259

    midroad
    ALLIANCE MEMBER

    I used a Mallory Unilite with no vac advance. Fitted easily.
     
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  3. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    I might have to find one of those. Any advice on using what I have now?


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  4. ROADSTER1927
    Joined: Feb 14, 2009
    Posts: 2,523

    ROADSTER1927
    Member

    Turn your distributor to where it fits and move the plug wires to where they need to be.
     
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  5. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    How about removing the vac can? Any advice or experience with that. I have a stock look Pertronix currently.


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  6. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    I think I’m going to end up doing that.


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  7. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    [​IMG]

    Here’s the traffic jam I’m working with. I talked to Offenhauser today. Seems like grinding the manifold is what was done to fix this.


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  8. Like @ROADSTER1927 said...

    1.) The body of the distributor can be in any position you want.
    2.) Any position on the cap can be #1.

    Turn your engine to TDC on #1 piston (firing stroke) / find best position of distributor by dropping it into position in multiple locations. Whatever cap position rotor points to is #1. The distributor doesn’t care where it is. It only cares about the relationship between it and #1 cylinder.

    Grinding the manifold? Absolutely not.
     
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  9. Truckdoctor Andy
    Joined: Jan 13, 2017
    Posts: 639

    Truckdoctor Andy
    Member

    No way I would grind on that beautiful manifold. Since you’re not using it hooked up, remove the vacuum can, cut off the diaphragm housing and weld the actuating rod solid to the bracket, making your own lock out.


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  10. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    Offenhauser told me this intake will be for sale again in the near future. That should bring plenty of views to this post over the years.


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  11. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    [​IMG]

    I sanded an old cap to give me the clearance I needed. The distributor now has some rotation to it. Next I’m going to look at locking out the advance on the distributor.


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  12. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    I decided on picking up a used Mallory distributor. The 56 style V8 distributor cap and non vacuum advance is what this intake is designed to use. [​IMG]


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  13. CPT_Kill_Roy
    Joined: Feb 23, 2019
    Posts: 35

    CPT_Kill_Roy
    Member

    I got the distributor issue solved with a Mallory Dual point. Thanks for the advice. [​IMG]


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