I have a 1993 GMC Sierra Z71 that floods on me sometimes. It may be weeks apart or days apart. It starts up fine and drives good then out of the blue I will push the gas to take off and it will stutter, usually after that it takes off and goes but its like its flooded, I pull over and is just burning raw fuel through the tail pipes, once I give it some good revs it clears out until next time. Yesterday and today its done it bad twice so I need to figure this out. thanks! (V8 tbi)