throttle body problems

[burnitdown612]

I have a 1987 1500 with a 305 EFI and i have problems with my throttle body. receently i changed out my oil pan becasue it rotted through. When i was all done installing a new oil pan i went to start the truck and and it just wouldent fire. I am getting good spark all around and my fuel pumps are working so i do get gas to the throttle body. If i poor alittle gas down the top of it it will fire just poorly. I have a feeling that either my throttly body is bad or i am not getting power to it. I am considering taking it to a shop to have them test the two plugs on top of the it to see if it is getting power. If anyone has any ideas what might be wrong with it or any thing that i should check please let me know.
NOTE: it ran perfect before the oil pan swap.

thanks - nick