Hot Rod Forum banner

lean

  1. Possibly running rich?

    Hotrodding Basics
    I replaced the problematic 800 cfm Quadrajet on my Chevy 350 with an Edelbrock 1405 600 cfm carburetor. Right away I noticed it starts and runs much better and sounds healthier, but the fuel economy REALLY suffers. With the q-jet I had been getting about 9.5-10 mpg w/ a max of 10.6. Now I'm...
Top