Greetings friends, I am from Venezuela, I am writing to you because I am the owner of a Chevrolet Silverado year 88 C10, it has a 350 engine (5.7 liters) turbocharged 700 and a carburetor with 4 mouths, the engine was repaired in the month of December as well as the automatic transmission repaired and It was very good ... the month of January was very good, everything was fine the month of February because of travel I parked it for 2 months and then I returned to Venezuela ... I put it to work and everything well ... perfect .. For 2 weeks from one day to the next the truck started to fail the engine, I thought it was a spark plug ... I check them, I clean them but it was not spark plugs ... they all work ... there is current, I check the distributor and all pins send current ... replace the spark plug wires, for some new ones ... but they all continue to send current ... replace the spark plugs ... but the engine still has a fault but all the cylinders work ... :( I don't know anymore that can be ... the mechanic tells me that it can be a bad engine valve to sitting and you have to disassemble it ... but if it were a valve, the fault would be very strong, I say? ... it is a minimum fault and sometimes the engine tones 100% and starts to fail as if it were spark plugs ... but the mechanic is I decided that I would disassemble the engine for that ... but today in the morning after 3 days without starting the truck, the carburetor hit me and began to get fat and wet all the gasoline engine ... and I didn't want to start the truck I tapped the carburetor and then I take it off and stopped embuchating. It had never happened to me, always turn on the shot at once without problems, so I spent many days off always lights well ... they think that fault is that the carburetor with 4 mouths is it dirty? or not? Bone for having dirty filth? Can the engine fail? I told the mechanic and he tells me what happened to me with the carburetor and told me ... Well, bring me the caburador and I will wash it with a tiner to clean it ... to see if the fault is removed ... what do you say but What else can I do before I disassemble the engine again?

THE PROBLEM IS IN THE CARBURETOR !!! if it was a bad valve the first day would go NO 15 DAYS LATER, also for what you say the problem is in the carburetor DO NOT SUFFER MORE !!! ... try another carburetor ... the problem is in the carburetor that sucks air and above the butterfly is locked ... change the carburetor and then comment .... greetings !!!

Dear ... The carburetor overflows because the punzua does not cut by, decalibration of the float in its drive and / or wear, its seat poor. Salu2.