Throttle body and Intake plenum problems!!

still need to let the computer adapt.the mix is controlled in cells.which is better understood as events,stopping from high speed is not the same event of stopping from normal speed.takes a few different trips,driven slow,normal,fast,to let the computer adapt,so if is driving ok at regular speeds and then,all the sudden,it's stall while stopping from high speed at the first drives,it is not a biggie.start it up again and let it eat.this is all making sure there is no vacuum leaks,(hoses disconnected,bolts torqued uneven,teared or broken gaskets),electrical connectors disconnected or incorrect idle screw adjustment.differs with the engine,there is no written specs.with the iac disconnected try to reach minimun engine speed without surging or stalling,move the screw slowly.the last is to adjust the idle screw.rev the engine in betwen adjustments.then when you get it right, find the next chevy and beat him up.:bigthumbsup