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Got brand new Q-Jet...what next?

Discussion in 'The Garage' started by turdmagnet, Feb 18, 2007.

  1. turdmagnet

    turdmagnet Registered Member

    Jan 5, 2007
    Likes Received:
    I got my hot little hands on a brand new (not factory rebuilt) Q-Jet #1902. My question is what should I do to it before installing it on the engine? This is my first carb. I assume that it will run just fine as is after proper tuning, but I want this carb to function more reliably off road. Is there some kind of off-road modification(s) I should make to the q-jet before I install it? I don't need really radical performance out of it, I just don't want it to quit on me when I'm on a steep incline, and I want the power to be there for me when I need it. Fuel efficiency is an issue to, I don't want to see the gas guage move down every time I romp the pedal. This is going on top of a '74 K5 with a 350 engine. Pretty much everything is stock.
  2. 1977k5

    1977k5 1 ton status Vendor

    May 26, 2003
    Likes Received:
    Nope, Q-jets run very well at angles right out of the box. Some people mess with the float level, replace the vent with a taller one or even mount the carb backwards. I haven't done any of these things and I have never had any issues with it stalling at any angle.

    I'm sure you'll have to tune both the primary and secondary circuits though.
  3. FWP

    FWP CRS Premium Member

    Oct 11, 2000
    Likes Received:
    Prescott Valley, AZ
    You may need to re-jet it, depending on your altitude, the little booklet explains it pretty well, use that chart.

    Also, depending on what you mean by "steep incline", for normal stuff, shouldn't give you any problems. If you head uphill something, more than say 50-60*- ish, you will have trouble due to where the primaries are located in the bowl.

    Backing up a hill in that case is pretty interesting:eek1:

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