Which intake manifold?

Discussion in 'Engine/Drivetrain' started by 80longhair, May 15, 2016.

  1. 80longhair

    80longhair Member

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    Ok I'm doing another hybrid build but was thinking about throwing a GM TBI on it. I have a couple intakes to choose from. I have a cannon single plan 20r intake and a Holley Street dominator intake. Which one do you think is better and why? Ether way I'm gonna need an adapter.
     
  2. jetas

    jetas Grand Toyotaholic

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    TBI is as big as a V8 carb aint it?
     
  3. 80longhair

    80longhair Member

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    It's 500cfm with 1 11/16" ports. It's going to be tuned to run with the 4.3l injectors.
     
  4. jetas

    jetas Grand Toyotaholic

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    I mean the physical mounting surface
     
  5. Perkolator

    Perkolator Veteran

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    Interesting. Didn't know you could even DO what you're trying to accomplish.
    Will there be enough headspace to close your hood with a setup like you're considering?
    I suppose you'll have some giant adapter plate like this?
    [​IMG]
     
  6. 80longhair

    80longhair Member

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    Well the Holley is a 4bbl intake. I can find an adapter for that one. It is a common enough swap ( for v8's going from carb to TBI) if I use the cannon intake I'm going to have to make an adapter going from Weber to TBI. either way the adapter is gonna be around 1/4-5/16". I talk to another guy who has done this setup, he said there wasn't much of an issue with hood clearance and I can find a low pro air filter if I have to.
     
  7. 80longhair

    80longhair Member

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