77 chevy 400 small block vaccuum diagram?

Discussion in 'GM Powertrain' started by socal77k5, Apr 8, 2010.

  1. socal77k5

    socal77k5 Rockstar

    hey yall i have a 77 chevy k5. with a 400 SBC with a 4 bbl rochester quadrajet. I have the timing set but it still runs a bit off. i know its the vaccuums. does anyone out there know where i can find a diagram for this years 400 motor?
     
  2. mattrunner

    mattrunner New Member

    I too had a rebuilt of my 400 sbc lately however ran out of cash in the middle of up gradations and had to do with lower horsepower. should be aiming for a bit higher power later this year.
     

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