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Dumb TBI ?

Discussion in 'The Injection Section' started by CB77GMC, Aug 22, 2006.

  1. CB77GMC

    CB77GMC 1/2 ton status GMOTM Winner

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    Doing a Carb to TBI swap on my 77. Can I run the old style twist lock cap or do I need to change to a screw in style?
     
  2. Cricket

    Cricket 3/4 ton status

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    Assuming your referring to your fuel cap. If you keep the stock carb tank and run a frame mounted pump your going to have problems with the tank overpressurizing. Either find a vented cap or make sure your tank vent is clear of obstruction. I'd recommend doing both.

    At least that was my experience.
     
  3. CB77GMC

    CB77GMC 1/2 ton status GMOTM Winner

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    Ooops.... Yea I am talking about fuel cap. Swaped to TBI tank/pump aready. But can't change filler cap yet. I kinda figured as long as tank had good vent I'd be ok.
     

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