My car does almost the same thing. When it gets hot sometimes it starts to idle lower and almost die out. Sometimes I have to hold the throttle on the line so it wont die out I am thinking maybe the power valve is opening and flooding it.
I am going to try a lower vacuum power valve and see if that helps. This a Quick fuel RQ 950. Keith
Check the float levels, fuel pressure. Do you have an insulator between carb and intake? Sounds like it's going rich after it warms up. I also don't think it's the PV. Timing?
