vapor lock? possible?
 

sometimes when driving my custom rotary car, it will just cut out. Then starts after a minute. I am guessing vapor lock? My fuel pump is located fairly close to the exhaust. I am using a weber 48IDA. Has anyone experience this type of problem?
(I do not have a fuel pressure gauge in the car, so I can't see whats happening there)

Possible. Could also be carb icing.

what is carb icing?

Wikipedia explains it better than I can.

http://en.wikipedia.org/wiki/Carburetor_icing

It's worth noting that carb icing can occur even on warm days.