Car wont restart after sitting for 5min ???

Sounds like fuel percolation. Mine did the same until I installed a spacer between the carb that absorbed the heat instead the carb. I have a air gap intake now without the spacer... intake will not get that hot.

To confirm drive the car... get it hot. Shut off engine and remove the air filter. Look down into the carb. If you see fuel coming out of the carb venturis then it is percolation.