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.