It dies (acts like its running out of gas) after a few minutes driving. Won't restart. Wait 30 seconds or more, and it starts right up and takes off. Until next time. Does this at temps ranging from 50-103 degrees. Has been doing it since I got the car in July: I still haven't been able to drive it off of my own property (fortunately I have a 1/2 mile lane).
I've done the following:
checked for vapor lock by removing gas cap. Still does it
removed air cleaner. still does it
rebuilt fuel pump. still does it
checked fuel pressure. 12psi
checked fuel pumped volume. normal
Pulled top off carbueretor. fuel bowl full (float is set right!), float dry, cleaned up interior of carburetor, blew through jets, etc. Still does it
The engine starts easily and idles smoothly, pulls fine on hills (except when 'acting up'). Nice hot blue spark.
I'm completely baffled. Have any of you encountered a problem like this?
Thanks in advance for all replies.