Car wont restart after sitting for 5min ???

Make sure your choke is working properly and not staying closed after the motor is warm. It's unlikely to be a mixture issue. It's also unlikely the issue is fuel evaporation if the problem occurs in just a few minutes.
The first thing I would check is the condition of the fuel pump. If the fuel pump diaphragm has a pinhole in it, it will allow the fuel in the carb to drain back through the pump, leading to vapor lock. It's a fairly common problem.
If you have a transparent fuel filter between the pump and the carb, it will be low or empty after sitting a bit if the pump is bad. If you don't have a filter to "see" the fuel, you can pull the line off the carb and put the line in a bottle or something to catch any fuel. Then have someone crank the motor to see if the pump is working. Be careful here if you're doing this on a hot engine, you don't want fuel to squirt onto a hot manifold and start a fire.
If you determine you have plenty of fuel and the choke's not the problem, then put that all back together and check for spark. You might have a bad ballast resistor, or maybe a coil. I've seen plenty of coils quit working when hot, and work fine 30 minutes later.