I need air line diagram.

I need air line diagram for my 1991 chevrolet lumina apv. My mechanic just retuned the engine. I travelled out of town with it when. Whenever i try to accelerate it hesitate and eventually die off. But when i just depress the pedal a little bit it will run smoothly without the map sensor. I then removed all the air line and fired the engine up on a long distance and it started running fine but i suspect i am burning too much fuel. I now want to connect back all the air lines but don't know how to do that. I have connected the map sensor and it is doing and i see that the idle is too high. I know that if i connect back all the air lines properly, everything will come back to normal. So, i need the air line connection diagram to be able to do this. The car uses dual pot throttle cable.