New Carb Advice

Discussion in 'The Mixing shop.' started by RDBSONS3, Apr 23, 2015.

  1. RDBSONS3

    RDBSONS3 67 Skylark,350 transplant

    Hi Guys I am currently running a Quadrajet carb on my Buick 350 stock and its been rebuilt twice and still floods out all the time, I want to change out the carb and would like your advice on what to do, I have not found any new spread bore carbs and would like to stick with a spread bore so I do not need an adapter plate. can anyone throw some advice my way. something easy to install that would not need modification, since I am a backyard mechanic or unless I can have some one in my area install one that wont break the bank.

    I am in Minnesota.

    Thank you
    Randy
     
  2. carmantx

    carmantx Never Surrender

    I'd first say, don't give up on the quadrajet, it is a great carburetor when built right.

    Who did your "rebuild". And was it done correctly. Lots of people can put a kit in a carb, but that won't get the job done these days. There are so many things that need to be done that are not in a store bought kit and the parts are junk.
     
  3. GSX 554

    GSX 554 Gold Level Contributor

    Stick with the Quadrajet and talk to Mark. He does Excellent work at reasonably prices and quickly.
     
  4. rtanner

    rtanner Well-Known Member

    demons, new thermoquad style carberator is outstanding, small primaries and big secondarys, adjustable air flap, just like qjet, larger bowl capacity, electric choke, nephew put a polished one on his 460 ford, ive got a phenolic bowl one on my 455 pontiac, needles and seats work well w todays alcohol mixed gas, and the accelerator pump is made of a non shrinking material, you can get one on line at advance auto w a 50 dollar off coupon for like 285, google new demon thermoquad, DO NOT BUY a edelblock!!!
     
  5. DEADMANSCURVE

    DEADMANSCURVE my first word : truck

    what style fuel pump are you using and what is your fuel pressure ?
    year of motor ? and maybe list your carb part# ( verticle number right behind the throttle linkage hookup . or could maybe be on a small round tag , driver side of carb ) . may not make a dif concerning your problem but good to know . throw a couple pics up , sometimes there will be a vac hookup or linkage problem someone may spot ?
     
  6. MARTIN FARMER

    MARTIN FARMER Well-Known Member

    7042240 QUADRAJET (800cfm 1972) for 455s runs lean & runs Great on 350s
     
  7. RDBSONS3

    RDBSONS3 67 Skylark,350 transplant

    Is this for sale
     
  8. RDBSONS3

    RDBSONS3 67 Skylark,350 transplant

    I Am running a mechanical fuel pump stock. also I spliced a rubber fuel line hose on the fuel line cause It bent and cracked would this be causing issues also How can I check my fuel pressure?

    Thanks
     

Share This Page