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Thread: Power valves or no P/V

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Mar 2009
    Posts
    151

    Power valves or no P/V

    I know I'm asking a lot of questions and I dont meen to be a lot of trouble I'm just trying to get it all right. I know some of yall been doing this a long time and yall know the do's and dont's a lot more than me. so for Drag racing only is it a plus to plug the power valve and jet it up or is it just done for insurance against back fires and blowing your power valve out.
    Thanks Andy

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2006
    Posts
    2,044
    Racing - plug it and jet up
    I don't go up as many (8 to 10) usually more like 5 or 6 but only cause I bracket race and running your carb lean helps its run more consistent.



    Street - running a P/V will help with driveablity (low to mid range) in race trim, doesnt matter since 99% of the time your @ WOT.
    Goodluck, Cp
    ***IN GOD WE TRUST***

  3. #3
    Junior Member SHOW GUEST
    Join Date
    Mar 2008
    Posts
    8
    Go to holley.com and read about Power valves you won't have any problems with blowing them out

  4. #4
    Senior Member MASTER BUILDER
    Join Date
    Mar 2009
    Posts
    151
    I'm not really worried about blowing them out. I'm just wandering if there is a plus to not use them and just jet it up.
    Andy Byrd

  5. #5
    Junior Member JOURNEYMAN
    Join Date
    Nov 2006
    Location
    san antonio,texas
    Posts
    28
    i had Pro Systems build me a 1150 dom and he put power values in the primarys and blocked them off in the secondards. no problems and we run bottom 9s

  6. #6
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Posts
    4,143
    I have never blown one.


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