70 GS Engine Troubleshooting

Discussion in 'Buick FAQ' started by chewonthis, May 10, 2003.

  1. chewonthis

    chewonthis New Member

    PROBLEM..... My 1970 GS 455 has lots of horses at low speeds, but if I punch it, then sometimes it will backfire, but it will almost always die. Any ideas on what the problem may be?
     
    chewonthis, May 10, 2003
    #1
  2. Smartin

    Smartin Guest

    Sounds like a carb problem. Time for a rebuild!!:Brow:
     
    Smartin, May 10, 2003
    #2
  3. tlivingd

    tlivingd BIG BLOCK, THE ANTI PRIUS

    check for air leak

    you may have a vacuum leak at the base of the carb or something like that. my 2bbl seemed to do the same so i figured i'd rebuild it.

    instead i put a 4bbl on. when pulling the 2bbl off the intake i found out I could have pulled the bolts out with my fingers.

    :Dou:

    well atleast i have a 4bbl now:Brow:

    Nate
     
    tlivingd, May 10, 2003
    #3
  4. Floydsbuick

    Floydsbuick Well-Known Member

    Timing not advancing. Thats my $0.2
     
    Floydsbuick, May 10, 2003
    #4
  5. 462CID

    462CID Buick newbie since '89

    Chewie-

    What's on and in the engine? Stock parts, aftermarket parts, what?
     
    462CID, May 11, 2003
    #5

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