tbi running rich

[Edahall]

the truck is a 87 v1500 with a 305 but originally a 350 and i have replaced o2 and the temp sensor with 2 wires but it is still getting the bumper "sooty" any ideas

My best guess is that when they swapped from a 350 to a 305, they used the throttle body from the 350.  The problem is, 350 injectors are higher flowing than 305 injectors.  Anyways, take a careful look at your injectors and if you see any orange or black markings on it like the following picture, it's a 350 injector.  305 injectors will have green and white markings.
http://i29.photobucket.com/albums/c278/Davephoto/inj2.jpg

[rusty but trusty]

my injectors dont have those color marks and i think that the fuel system wasnt changed at all when the engine was changed and when i get it back from the place replacing my flexplated i will begin to get new injectors and a new distributer

[Edahall]

my injectors dont have those color marks and i think that the fuel system wasnt changed at all when the engine was changed and when i get it back from the place replacing my flexplated i will begin to get new injectors and a new distributer

Then that would be the reason why it is running rich.  Make sure you buy 305 specific injectors (TJ4) with a green / white marking and a flow rate of 40 lb/hr.  The 350 injectors have a flow rate of 55 lb/hr and will cause exactly what you described when used on a 305 engine.

[rusty but trusty]

sorry for not responding earlier but i have been having problems with the internet lately
but the  information will be used and hopefully solve the problems to all who helped thank you all so much