Starts, drive about 45-50 mins then dies. 20 mins later it starts right up. What's causing this. Replaced carburetor still have the problem.

 

Replaced the carb?

When it dies what is missing? Fuel or spark....need to figure this out.

Several methods for checking spark. For fuel you can spray carb cleaner or starting fluid into the tb - open the butterfly - and try to start the car.