I'm guilty of talking him out of turning the boost knob up some more. Very impressive numbers, but I think thats really pushing it, at least if you want it to last longer then the dyno.
Convo went somethign like this:
me-"Dude, you do have another car to drive right?"
dude-"oh yeah I got 2 other cars"
me-"okay but thats pushing it already, do you really want to tow it home?"
dude-"well it would be nice to still drive it for the rest of the year"
long pause
dude-"hey Brian, I'm done, lets get it down."