e350 trouble starting w/460

[mike_dmt]

Ok, heres the deal. My van starts great in the morning, but after running for a bit and warming up, has trouble starting. Once started though runs great with no smoke or sputtering. Whats the deal? Is there a cold-start sensor or something that could be choking the thing out? Im not sure since I equate black smoke with a fuel richness problem. Again this is only once the engine is warm. Any help is appreciated!

[aldad]

For some ideas to try, check posts to my thread:
"1994 E350 5.8L sometimes won't start unless battery is reset"