try to make a good pull in 6th gear (10r80) around 120-125mph it shuts down. it actually goes nuts. throws every warning on cluster that it has plus wrench light. touch the throttle afr's go dead lean. pull over shut it off for a minute or 2. start it back and everything is good. im stumped. any help would be appreciated. i very seldom hit those speeds but its very aggravating not being able to figure out the problem. runs and drives great on my e85 tune but at 120-125mph game over.