98 Chevy K1500 running rough cold.need help!!?

David

New member
i have a 98 chevy k1500 with a 5.7l in it.it runs really rough when first started up until it warms up.by running rough i mean almost undriveable.so far i cleaned the maf sensor,checked the distributor and also tried another one,and put in a new fuel filter,pcv valve,and new plug wires.everything seems to help but the next day its back to running rough.you can smell gas when it does it.usually once its warmed up it runs ok.it does it even worse after it has rained.any suggestions or ideas what to check?
 
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