1995 jeep cherokee dies after driving for more than 25 or 30 min acts like it is vapor locked also temperature gets to 190 on thermostat within a couple of minutes of starting the car after setting overnight?

Most run at 200-210 degrees so the temp you stated is fairly normal....Vapor lock generally is associated with mechanical pumps that put out 5-8lbs of pressure...the electric pump in your car puts out over 40 when needed and unless you're running in the desert, it's doubtful that it's locking.You need to do some testing to determine exactly what pressures you have at the fuel rail, if you are getting good spark etc. in order to determine what's going on there. Don't work blind...get a manual like chiltons or haynes that can give you specifications and test procedures...It's cheaper in the long run than just throwing parts at it 'till the problem goes away!!! If the engine is balky or slow turning the problem may not be fuel or ignition but may turn out ot be a worn out starter...That's why testing is so important!!! If you have any questions about any specific tests, don't hesitate to ask. Good Luck!!!!