69 430 jet size???

Discussion in 'The Venerable Q-Jet' started by GS69350, Nov 11, 2004.

  1. GS69350

    GS69350 Buick NUT

    I'm in process of rebuilding a carb from a '69 riviera... The engine is original and mostly untouched and seems to run reasonably well.
    The carb has been messed with, definitely rebuilt at one time, at least they put epoxy on the well plugs (though it didn't last!)...
    Anyways, the jets on this thing say 54 - I wasn't aware they had a jet that small!!!! It doesn't seem right at all. The rods are 43b which makes sense. It seems to me it just flat out won't run with 54 jets if that is actually how big they are... The secondary rods are BZ , VERY small tips.

    Basically just wondering what the stock jets/rods are supposed to be. (i would guess like 72-75)

    Thanks

    Dan
     
  2. Nicholas Sloop

    Nicholas Sloop '08 GS Nats BSA runner up

    Factory set up for a 69 Riv was 70 jet, 45B rod
     
  3. GS69350

    GS69350 Buick NUT

    Thanks, that sounds more realistic....

    Now to find me some jets and rods... where did I put them??

    By any chance do you know the secondary size also?

    Dan
     
  4. Nicholas Sloop

    Nicholas Sloop '08 GS Nats BSA runner up

    Factory secondary rod is an AY.
    By the way, all 69 big block carbs used this rod/jet combo
     

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