fuel pump?

Discussion in '1978 - 1981 Specific' started by Todd37604, Feb 10, 2012.

  1. Todd37604

    Todd37604 New Member

    Feb 7, 2012
    Dayton, Ohio
    i have a 1979 z28 camaro with a chevy 350 small block. i have a 650 holly carb on it and ever since i put it on it last summer if i get on the gas too much it shuts off real easy. we came to the conclusion that it was vapor locking but now its winter time and not too cold but cold enough it couldnt vapor lock.. and it still shut off. i think it has the original fuel pump so could it maybe be that the fuel pump cant keep up with the carb? any other explanations? what should i do and how. i need help so i can get my baby back on the road!:mad:
  2. ls777z

    ls777z Veteran Member

    Feb 19, 2000
    Are you sure the float bowl level is right ?
  3. Gary S

    Gary S Administrator Lifetime Gold Member

    Apr 14, 1999
    Bismarck, North Dakota
    Look at the carb first. A stock factory mechanical fuel pump will keep up with an 750cfm Holley and larger.
  4. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

    Nov 4, 2004
    Ringgold, GA
    I also think you need to check float height. Holley's web site has some very good tech sheets on setting up & tuning Holley's.

    Welcome to Nasty Z.... :)
  5. Todd37604

    Todd37604 New Member

    Feb 7, 2012
    Dayton, Ohio
    thanks! i had a family friend put on the carb and he has been known to drink and work so might check the float bowl level lol

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