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need help with a 750 ede

Discussion in 'Other' started by redene1958, Aug 23, 2010.

  1. redene1958

    redene1958 Well-Known Member

    i have a 750 edelbrock on my 72 350, it is a new carb it seems to be over fueling it boggs at wot and will b/f out the exhaust ign timing are all good. help please
     
  2. shiftbyear

    shiftbyear Well-Known Member

    Can You Borrow A Known Good Carb You Can Swap Out For Troubleshooting? If This Is The Afb Style There Is No Adjustment For The Secondaries. If It Is The Avs Style You Can Change The Spring Tension For Quicker Or Slower Opening. I Would Also Make Sure Gas Is Squirting From The Accelerator Discharge When The Throttle Is Opened. You Can Probably Get A Reference Off Edelbrock's Website For Correct Float Setting And I Think They Have Videos For Carb Troubleshooting. Also Check Barry Grant And Holley's Websites For Carb Troubleshooting. Good Luck
     
  3. Cliff R

    Cliff R Well-Known Member

    It's completely "hit and miss" with the AFB clones. My set up absolutely HATES them. Any attempt to go quickly to full throttle at any speed, gear, rpm, etc, and it PUKES all over itself. The slower the vehicle speed and lower the engine rpm the worse it stumbles.

    I've armed myself with Edelbrocks elite/expensive tuning kit and tried EVERYTHING in the box to help out, no improvement whatsover no matter where you jet it, or set the accl pump, etc.

    I can take the same carb, put it on a 1978 Chevy 350 in a 4 x 4 truck with big tires, and it's fine. It will do like all of them do, move the vehicle from point A to point B, suck tons of fuel, and do a little burnout in a hard right hand turn leaving Dairy Queen if you so desire!

    Seriously, the AVS version is much better. I've ran them at the track, and even though they were slower than every other carb we've tested, you can adjust the air door spring tension for smooth transition onto the secondaries.

    It's no secret I'm not a big fan of either of those carburetors. They became absolete over 30 years ago because they would NOT pass emission standards in place at that time. What makes folks think they are going to be a good choice for your engine in 2010?......Cliff
     

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