[Scarbs]

Tonight I was out at a Cruise and I started up B/C to show off my new exhaust note for a buddy. It started fine I goosed the throttle a bit and I hear a pop and steam comes out from under the hood. I shut it off and pop the hood nothing looks blown it look fine. I start her back up and do the same thing nothing I can't get it to happen again. It sounded like a Bleed off from a Super Charger but I don’t have one.

Any ideas. The car seems fine thou.