So my 78' Powerwagon has been acting funny recently. Its gotten pretty warm here in south MS and when I turn the truck off for a few minutes say from 10 on its really hard to start back up. If i start it in under 10 it usually fires up really quick. Does this sound like vapor lock. I put a new carb,coil,plugs, filters, and fuel pump on it over the winter. The truck runs fine once it fires it's just hard to start, any suggestions? I haven't checked the timing yet but I think thats fine.