so I have a Cammed l83, nothing serious done to it, but I am having issue with the truck dipping idle hard when coming to a stop.. the truck runs well otherwise but I'm tired of the rpm dip.. goes from 850 down to 400 sometimes less very quickly and right back up. hppens in the blink of an eye, but it isnt right and it is slamming my brand-new transmission when it jumps back up... If anyone could help me out with some advice on where to look or how to compare log to tune file and make the changes needed... Id like to have it fixed as ive already paid for it, but i will make sure he doesnt touch another one of my vehicles or anyone I know... He even missed a major misfire in the beginning... the truck is perfect, not one thing wrong with it...