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Thread: DOMINATOR RECCOMENDATION

  1. #1

    DOMINATOR RECCOMENDATION

    I HAVE A 540 PUMP GAS MOTOR 10.5 COMPRESSION GRUMPY JENKINS ALUM MERLIN HEADS, ROLLER CAM DURATION @50 INTAKE 275, EXHAUST 286, LIFT 746 INTAKE 751 EXHAUST, TURBO 400 10" CONVERTER 3800 STAHL,WOULD LIKE TO KNOW WHAT CARB TO USE, HOLLEY ULTRA 1050, OR THE QUICK FUEL, 2OR 3 CIRCUIT, OR OTHER BRANDS, THE CAR WILL BE ON THE STREET 90% OF THE TIME, THANKS

  2. #2
    Senior Member DYNO OPERATOR
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    Aug 2007
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    Lost Creek, WV
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    533
    As far as the carb goes I would probably go with a Holley 1050. But my concern on this combo is that it looks like it has a little too much cam for a 10.5 compression motor. With a cam that big, your dynamic or running compression is going to be from 7.5 to about 8 to 1. This depends on when your intake valve closes. JMO

    TS1955

  3. #3

    dominator reccomendation

    Quote Originally Posted by TS1955
    As far as the carb goes I would probably go with a Holley 1050. But my concern on this combo is that it looks like it has a little too much cam for a 10.5 compression motor. With a cam that big, your dynamic or running compression is going to be from 7.5 to about 8 to 1. This depends on when your intake valve closes. JMO

    TS1955
    i know the cam is to big at the time thats the only cam i had, on the carb should i use a 2 or 3 circuit, and the holley is better than the quick fuel, what size cam would be good, thanks

  4. #4
    Senior Member RACING JUNKIE jmarksdragster's Avatar
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    Jul 2007
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    Florida
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    If it were mine I'd get the Ultra 7320, 2 circuit 1150. Your engine will be much happier.
    Mark Whitener
    http://racingfuelsystems.myfunforum.org
    __________

    Good work isn't cheap, and cheap work can't be good.

  5. #5
    Senior Member DYNO OPERATOR
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    Jan 2004
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    central Illinois
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    459

    Dopminator recommendation

    I own a 1050 Ultra and it is very coinsistant on a 496 BBC bracket engine. If you are using it on the street I would consider having a carb custom built to get it right for you. Pro Systems would be my choice. I have an old Pro Systems 1050 also and it is just as good as the Ultra, just not as pretty.

  6. #6
    Senior Member EXPERT BUILDER
    Join Date
    Jan 2005
    Posts
    336
    think of your cam this way...if it was smaller and made more torque, could u use it on the street???


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