So there is a guy selling a 99 cobra with bolt ons only and a 4.10 gears who says he ran 11.7 or 11.9 without a power adder. Mods are not that extensive either nothing like Mach1 cams fr500 valvetrain etc... I think it's BS, however wanted to get your input. a 02 Z06 with 405 hp usually runs 12.2-12.6 how can a bolt on cobra with 320hp run 11.7s? if he did do it, I think it's very impressive for a N/A 99 cobra. I have seen 03+ cobras run low 13 to mid 12s with a few mods that is with a blower and a few bolt- ons.