i own a 96 s10 blazer with a 4.3 eng. the eng is a TBI eng all at once it started to get to much gas and the spark plugs were covered in gas can you tall me the problem i also tune the eng up hopeing that would be the answer. at first the front plug on the right side was the only one now they are all like that it will start but their is black smoke that comes out the tall pipe if i give it move gas it runs better but if i dont ti all most stops running can you let me no the problem thank you jeff
Optional Information:
1996
Chevrolet s10 blazer 4.3
Already Tried:
a complete tuneup cap wires plugs air cleaner