Well I have a 1988 Chevy Celebrity 2.8 engine 6 cylinder. It will crank but want

Hello, There are 100 possibilities, or more, and you really will need diagnostics to find the issue. The first thing I would do is check for vacuum leaks, and fuel pressure at the engine. Next, there are many videos out there about checking if you have spark at the spark plugs, find a method you are comfortable with, and find out if your coil/wires are failing when the engine gets warm. Also, 88 is an OBD1 year, so there are videos out there that will show you how to pull fault codes. Post them here and I'll see what's going on. Also, how does it die? Cough to death, or just like you turned off the key? Does it have power in those 10 minutes?