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    OMC 3 litre GM Breaks down under load, Backfires through carb

    We have an '85 Citation with an OMC 3 litre (GM). It runs fine when ideling, but breaks down under load. It is also backfiring thru the carb. Any suggestions???? :eek:
  2. K

    OMC 3 Litre GM Breaks down under load, Backfires thru carb

    We have an '85 Citation with an OMC 3 litre (GM) engine. It runs fine when it is idleing, but breaks down under load. It also is backfiring thru the carb. Any suggestions???
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