well not sure how mutch my friend put in but anyway what is the hose that runs into the bottom of the throtle body
i removed the plenum again today just to make sure everything was good with the lines and i noticed it and hooked it up well i let the truck run and idled good got hot still idled good and reved it a little and it did fine havent drove it yet but i was wondering if that hose has anything to do with my air/fuel mixture

 

Picture?? I cannot picture the hose you are talking about... Where does the other end of the hose go? How large is it?

 

I had a similar problem...turned out the catalytic converter was clogged enough to rob the engine of power and it really ran like crap! good luck.