My 81 GMC Sierra SWB has a 350 in it. I know that the truck wast driven very much before i bought it, but I am having an issue (after getting a full tuneup)
When I punch the gas, the engine bogs down to the point of almost dying for about 1 full second, then it takes off like a bat outta heck. Its just nt making sense to me, I feel like if she was staring for gas that she would putter out after I had punched it and gunned it for a bit, sucking the gas out of the carb reservoir. Am I wrong here? What do you think it could be? I think it is better when the truck is really warmed up too, if that helps.
I checked out the vacuum lines already too, and my local guy took a look at the carb and said he doesnt see why it would have issues.