Spectra Efi Tanks

Discussion in 'High Tech Retrofits' started by hot72rod, May 18, 2015.

  1. hot72rod

    hot72rod Veteran Member Gold Member

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    From what I have found there are 3 part numbers that can be used for the 70-73 Camaros.

    GM42AFI
    GM42BFI
    GM42CFI

    My question is which part number is everyone using?
     
  2. bygblok

    bygblok Veteran Member

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    mine was the 42afi because I have a vented gas cap and no emissions(charcoal canister) Works great but with the vented cap it'll stink the garage up some.
     
  3. hot72rod

    hot72rod Veteran Member Gold Member

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    After talking with Spectra GM42BFI and GM42CFI are the same tank.

    Any reason you can not used a vented cap with the emissions tank (GM42BFI)?
     
  4. bygblok

    bygblok Veteran Member

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    I would think that the cap would work regardless of what tank it's on but can't say for sure. I knew my car never had a canister on it and it stinks the garage up after a night of driving from fumes. Smell's really good if I use some aviation fuel or race gas!! lol
     

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