Some updates on my 350

Discussion in 'Small Block Tech' started by TXGS, Jul 15, 2020.

  1. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    Some updates of my 350.
     

    Attached Files:

  2. Mark Demko

    Mark Demko Well-Known Member

    Hows it run?
     
  3. Mart

    Mart Gold level member

    Phil,
    Looks interesting, lot of wires......
    What happened to the Speed Demon?
     
  4. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    Actually, Marty it was a Quick Fuel 750 SS I helped a guy that needed a carb and passed it forward to him at a very reasonable price. Maybe I will get some good karma for it.... I am in the process of setting it up at the moment. With the air cleaner on it, the wiring is minimized. Again this is the initial setup and I will go back in and reroute the wires as needed. Next is the fuel system. Hopefully my relatively stock 350 will run smooth with it.
     
    Mart and walts72 like this.
  5. Mart

    Mart Gold level member

    Thats right, the Demon was the dyno run carb. Did you run the SP3 with the QF carb? How did it work for you?
     
  6. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    It ran a lot better. The Demon would never idle right. I am about 90% done with the fuel injection conversion.
     
  7. Mart

    Mart Gold level member

    Phil, don't those efi's need a good vacuum signal to meter the a/f ratio well? I only have 6.5
     
  8. TXGS

    TXGS Paint by numbers 70 GS 455 4spd

    Marty, The only vacuum needed is for the fuel pressure regulator.
     
  9. Mart

    Mart Gold level member

    How well is the FAST system working Phil?
     
    Dano likes this.
  10. sean Buick 76

    sean Buick 76 Buick Nut

    The modern self tuning TB EFI are fine with little vacuum.
     

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