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1/4 mile times need info

Discussion in 'Carburetor + Boost Tech Questions' started by allmotor65stang, Jan 20, 2007.

Page 3 of 3

  1. allmotor65stang

    Joined:
    Oct 1, 2006
    ok well my timing is set at 18* int with to light silver springs and the big black bushing...the black bushing is for 18* of timing advance its at 25* and with my boost retard it takes 1* out starting at 4lbs of boost so total timing is 23*...
     
    allmotor65stang, Jan 26, 2007
    #41

  2. 79Sleeper

    Joined:
    Nov 11, 2003
    So whats your fuel pressure at the top of high gear during a full run???
     
    79Sleeper, Jan 27, 2007
    #42

  3. allmotor65stang

    Joined:
    Oct 1, 2006
    base psi is 8 and at full load its 13-14 on 5-6psi
     
    allmotor65stang, Jan 27, 2007
    #43

  4. badassmav

    Joined:
    Oct 3, 2005
    I know all set-ups are different, My blow through, junkyard 302 has a 650 dp the pvcr's are drilled to .078 and I run 68-71 jets a 2.5 pv amd 24 deg. total, 16 initial and 8 mech. with and afr of 11.6 across the board and thats with 18psi. Seems the jetting is kinda up there as well as the base fuel press., I lowered my base from 7psi to 5psi and it lowered my overall afr from 10.0 to 11.6. Plus you should kill some of that gear.
    Just my .02
     
    badassmav, Jan 30, 2007
    #44

  5. allmotor65stang

    Joined:
    Oct 1, 2006
    allmotor65stang, Feb 6, 2007
    #45

  6. Boosted351

    Joined:
    Jun 13, 2005
    Not a bad shelf cam. What heads are you running?
     
    Boosted351, Feb 6, 2007
    #46

  7. Blown347hatch

    Joined:
    Mar 11, 2004
    You want that thing to respond? Run octane (like 110) and leave the timing in.
     
    Blown347hatch, Feb 7, 2007
    #47

  8. allmotor65stang

    Joined:
    Oct 1, 2006
    edelbrock performer heads just out of the box...

    also i do plan on running 110..tunning my car on 110 with timming in it and on 91 with timming out..
     
    allmotor65stang, Feb 7, 2007
    #48

  9. Blown347hatch

    Joined:
    Mar 11, 2004
    On good octane, when my car was S/C, I've always run 28 degrees timing with cast iron heads and no intercooler. Gas was C-16.
     
    Blown347hatch, Feb 7, 2007
    #49

  10. Boosted351

    Joined:
    Jun 13, 2005
    I dont think that cam will help too much with the performer heads. Just throw an F303 cam in it and be done.
     
    Boosted351, Feb 7, 2007
    #50

  11. 90lxhatchback

    Joined:
    Dec 12, 2006
    Idel air mixture screws is what leans a motor out on the idle circuit.. That and how far you have the throttle blades open... My car was @ 11.5 during idle when I bought the car and now it is at 14.0 just by adjusting the idle mixture screw.. Just go slow and keep watching the wideband..

    Good luck..
     
    90lxhatchback, Feb 8, 2007
    #51

  12. allmotor65stang

    Joined:
    Oct 1, 2006
    i have a problem with the top end leaning out not the idle my idle is ok for now at 13 to 14 and cruse is at 12.0...
     
    allmotor65stang, Feb 8, 2007
    #52
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