Whats the problem here?

[tylermckee]

Have a 454 in a 87 p30 chassis. Engine seems to idle fine when you first fire it up, after a few minutes the idle kicks down and it seems to idle normal, has about 20# vacuum and holds steady. Then after running 10 minutes or so and getting fully warmed up it just wants to die, wont keep running unless i give it some throttle. Otherwise it will just bog down and die.

What are some of the things that could be going on here so i can run through and check everything.