Ford doesn't have a current street legal car that can compete with the Z28 on a road course. The GT500 will beat the Z28 in acceleration but that's it. The 1LE gives the GT500 some issues on certain road courses, imagine what the Z28 will do.
2011 Summit White Camaro 1SS/RS
-6.2 LS3, TR6060, 3.45, G80
2004 Black Silverado 1500 2WD Regular Cab, Short Bed
-5.3 LM7, 4L60E, 3.42, G80