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holley carb help

Discussion in 'The Garage' started by nicotine, Dec 10, 2004.

  1. nicotine

    nicotine 1/2 ton status

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    i need help or some specs on how to tune my holley 4 barrel i need to know wich of the 2 adjustments on each side are and wich way to turn for adjusment.
     
  2. socalblazer

    socalblazer 1/2 ton status

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    If you're talking about the small (thin) adjustment screws those are to adjust the idle mixture. Turn them all the way in (clockwise), then back them out (richen) about 2 1/2 turns. This is a base, then you can adjust (equal side to side) from there. Don't go much leaner (in) then 1 3/4 turns so you don't burn any valves.
     
  3. nicotine

    nicotine 1/2 ton status

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    which side is what for mixture right =? left=?
     
  4. swissk5

    swissk5 Registered Member

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  5. socalblazer

    socalblazer 1/2 ton status

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    Right is right and left is left, that's why you want them to be equal. There usually isn't an adjustment on the rear unless it's a center squirter (race).
     
  6. nicotine

    nicotine 1/2 ton status

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    it seems to rich and 2 turns and if i go to 1 1/2 turns would that be to bad because it doesent seem to smeel rich there.
     
  7. mrk5

    mrk5 The Sticker Guy Moderator Vendor GMOTM Winner Author

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    I like to use a handheld tach. If you're going to do your own tuning you might as well invest in one. Mine has the tach along with all the other mulitmeter type stuff.

    Here's the method I use:
    If it's an auto, I like to do this with the tranny in Drive while someone holds the brakes.

     

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