Backfiring

1988 CHEVROLET CAMARO
75,000 MILES • 6 CYL • 2WD • AUTOMATIC
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WHITE88CAMARO
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  • 3 POSTS
88 Camaro had a complete tuneup. It backfires & stumbles when going up a hill
Jul 22, 2011 at 8:08 AM
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DOCFIXIT
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  • 18,828 POSTS
Did this happen after tune?
Jul 22, 2011 at 8:19 AM
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WHITE88CAMARO
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Yes
Jul 22, 2011 at 8:21 AM
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DOCFIXIT
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  • 18,828 POSTS
What was replaced?
Jul 22, 2011 at 8:28 AM
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WHITE88CAMARO
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  • 3 POSTS
plugs,wires,cap & rotor plus timing set
Jul 22, 2011 at 8:33 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Timing set you mean chain and gears? if yes marks dead on? check firing order and wire routing original position. Is coil in DIST cap or external?
Jul 22, 2011 at 8:46 AM
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