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55 desoto 291 hemi backfire

Discussion in 'New to the H.A.M.B.? Introduce yourself here!' started by chuckb, Oct 14, 2017.

  1. chuckb
    Joined: Oct 14, 2017
    Posts: 7

    chuckb

    I purchased a finished 32 ford 5 window that has a 291 desoto hemi. it has 4 strombergs. runs on the center 2 and i disconnected the progressive linkage to the outer 2. it backfired through the carbs when over half throttle. ignition timing is set at 35 btdc. if i adjust to 10 it works worse. it has 35 deg of dwell and goes to 60 when it boggs down and backfires. the timing advances properly about 22 degrees during accelleration. it has a solid state pickup and mechanical advance. i cant find a control module. any ideas?
     

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