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Old 10-11-2011, 12:42 AM
Gen1dak Gen1dak is offline
Dodge Ram Forum Senior Member
Join Date: Aug 2011
Location: MS Gulf Coast
Posts: 1,663
Gender: Male
Vehicle: 1990 RamCharger
Color: Red
Engine: 1988-1991 318ci (5.2L) LA V8 140hp
Rep Power: 4
Gen1dak will become famous soon enough

Hate to sound like a broken record but you absolutely must confirm that blasted intake belly pan gasket isn't blown. Running in third as opposed to 4th causes higher rpms which masks a vacuum leak. Backfiring is a symptom of a vacuum leak. It could be something else, but address the worst offender first.
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