I got lucky last night, but I am certain my alky shut off at some point in my run. I have (not after today) vacuum port under the hood that I cap and zip tie off. Unfortunately I didnt zip tie it late the night before. Damn thing blew right off. This line feeds my alky and boost gauge. Since my tigger light is no where in my line of sight (it will be now) I didn't see it shut off. I didnt even realize it happen until after the run when my gauge was at zero (no vacuum) when idling. Luckily I am just working on a new street only tune, so I was very conservative. My maftpro dumped a shit load of fuel in and I was fine. Had I been really running on the edge the motor would have been gone.
This tool was on my radar before but this morning I realized the importance of this unit when we push these little V6's well beyond it's design limits.