Carb Help

Discussion in 'Technical' started by 70orangemav, Jun 23, 2007.

  1. 70orangemav

    70orangemav Member

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    Carb Questions I Need Help

    I have a 70 maverick with a .40 0ver 302 flat top pistons and a set of 58cc Jegs aluminumn heads roller rockers and a voodo camshaft 523.in 532 ex 268/276 dur. a performer RPM intake 2200 stall conv.462gears in the rear and a reverse manual valve boby I can't seam to find a good carb to get me off the line any suggestions? what is the biggest you would recommend?
     
  2. eddie1975

    eddie1975 Windsor Specialist

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    maybe its not the carb? how many have you tried and what were they?
     
  3. mcknight77

    mcknight77 Member

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    That combo should launch hard, even with a two-barrel.

    650 Holley
    750 Holley
    650 Speed Demon
    600 Edelbrock

    There are plenty of choices.

    Is it strickly a drag car?
     
  4. Max Power

    Max Power Vintage Ford Mafia

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    If it is a drag car with steep gears like that, a double pumper should do the trick. It would be helpful to know what you have already tried.
     
  5. 70orangemav

    70orangemav Member

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    I have tried a 600 elde. Good launch but just didn't have the umph it ran an 8.44 at 74mph.then a 670 street avenger it ran a 8.8 at 84 mph but 60 ft time sucked.this is 1/8th mile times would a 750 double pumper be to much for this setup?I figured this setup would put me in the high 7.80's?any thoughts.
     
  6. greasemonkey

    greasemonkey Burnin corn

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    Whats the timing curve? The converter seems to be whats realy hurting that combo. I'd say that street avenger needs some tuning but is the best choice.
     
  7. eddie1975

    eddie1975 Windsor Specialist

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    id say you need a looser converter, that help big time

    Whats you 60Ft?
     
  8. baddad457

    baddad457 Member

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    If the 60' time sucked with the 670, that tells me you had traction problems? The 670 ought to work fine. Just take time to tune the secondariy opening. A 750 DP will be too much for off the line, if it doesn't bog down, it'll take some accelleration off what a 600 will do. The converter sounds fine for the camshaft & gears
     
  9. 70orangemav

    70orangemav Member

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    1.9 60 ft time
    the tires never spun ,I run a set of hoosier 26x10 slicks I don't think traction is a problem but the carb tuning is the big issue at this time
     
  10. greasemonkey

    greasemonkey Burnin corn

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    Is that carb a double pumper or vaccume secondary?
     
  11. 70orangemav

    70orangemav Member

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    vaccumn secondary
     
  12. greasemonkey

    greasemonkey Burnin corn

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    My car ran similar numbers with the first combo. I put a 50cc accelerator pump in the carb and experimented with squirter size. Also change the secondary spring opening rate. One other thing, make sure you have a short quick ignition timing curve. Even a locked out curve would be good.
     
  13. 72MAVGRABHER

    72MAVGRABHER Maverick Mechanic

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    what are your reaction times and whats the tree calculated to? .500?

    i've seen people leave that torker stall and get a holeshot 2400 and it greatly changed the times....
     

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