ZMEnow you do realize that in a straight line, the Z/28 is just a tiny tiny bit behind, like barely anything right (as in .1 second barely anything)? On the track, well, obviously has the advantage there. But all in all, pretty much even up outside of the track, just doesn't have all the amenities as the ZL1.
Street Rage; just stay under 7psi or sleeve the block and you'd be golden