Jeff- I'm guessing you still have vapor lock problem. Don't know where you bought your gas for the weekend, but if it was near Rockingham, there are a couple of possible problems. You need low volatility gas to avoid the problem, and the volatility specs for that part of NC are not as tight as in places like Atlanta or Charlotte (for air quality reasons). Second, if it was at a low volume station, you could have even had some left over winter spec (much more volatile) gas, since I think the changeover date is mid-to-late May.

I hate to give away one of my "secrets", but a final fix is to let your gas jugs sit outside for several hours with caps off. It's a form of do-it-yourself volatility adjustment.