95 lumina

hi all, have '95 lumina, 3.1; car sometimes shuts off when put in reverse. anyone hase any ideas as to what might cause this??? any info appreciated
h2 pax, h2
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lack of power. It might be due to too lean or rich fuel: air ratio. to advenced or retarded timing or somethign else, but your car shoudl be missing lots of horse power. h2 wrote:

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