W/ just h-pipe, headers, u/d's and a cai I went [email protected] w/ a 2.1 60'. I'm sure it would go faster, but its on old 245's. I've got new tires for next weekend when I have the heads on, So hopefully I'll get into the 13's pretty easily. Anyone have a guesstimate of what it'll run w/ the track heats and 1.7's added to everything else....maybe mid 13's w/ traction? Everyone have a good weekend. See ya, Will