well i know a guy in canada who's putting down 427fwhp. He's running an 70mm TB, 80mm MAF, Custom fabricated Ram Air, and he's pushing 15 PSI out of a vortech supercharger with an after cooler i believe. I know of a lightened SHO known as the SR-71 running juice who's in the high 12's. The fastest guy i know personally is my boy alan SHO DWN by plates. He's run a 13.8 in the 1/4 and that was almost a year ago. I'm trying to drag him to dinwiddie to run it some more before he ships back home later this year.

as for the fastest i really don't know to be honest. i don't imagine anyone has broken the 11 second mark unless it's been truly race modified...