mkspeed26

well, the truck has always backfired, but i didnt notice that it was a backfire until recently. any ways to fix it? how bad is it? it isnt very loud, just sounds like i have a rock bouncin around in the pumpkin [:'(]

GreyStang

When is it backfiring? Maybe either your timing is advanced too far, or too little exhaust system backpressure..

99saleen351r

Or its really rich and putting raw fuel in the exhaust.Tha was a very common problem on carbs

92hatchLX

It could be A/F ratio also, just a suggestion.