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I am having the same problem, got spark and fuel actually too much fuel after a couple of minutes then it overfuels then dies or floods. I am positive it is the regulator in the throttle body. Plugs came out wet, dried them and re-started, then it flooded again!

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Q: 1989 suburban 5.7 wTBI starts then dies when warm and sitting for awhile then restarts and runs fine?
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