[bamared]

ive had the same issue on a few engines. timing was to advanced and was hard to start when hot. but that made hard starts cause the engine didn't want to turn over. haven't read if thats what is happening to you or not.

also, had one that the starter was getting heat soak. and it didn't want to start when it was hot too. also hard to turn over. i guess if your not having a hard time turning the engine over, than this isn't your problem.

another thing i would check is this, take it for a good ride, get to operating temps, and normal driving.
when you get home before you shut it off, pull the filter off the carb, and let it idle.
then, shut it off and look down the carb and see if your getting fuel leaking down the bowls. had that happen a few times in my 414w in the cobra.