or how about we throw in the callaway sledgehammer
even the jun supras topspeed racer couldnt break the callaways 254.7 MPH topend, i'm not positive on the rules, but i'm pretty sure the cars need to be streetable to take the record from callaway (which correct me if i'm wrong but his 254 mph run was even done on pump gas)
turbo cars, or at least large turbo ones, will have lag. coming out of a turn if the supra wasnt spooled he wont have the power to come out of the turn as fast, or if he spools mid turn hes likely to spinout. i'd give the track to the supra simply because like someone said, you cant spray the Z06 the entire track, a 10# bottle would be dry in ~1 min so it wouldnt really be worth it to even have the bottle in the car. if you were comparing say lingenfelters stage 2 it would be a good race, or the similarly HP'd 427TT I'd have to give it to the vette.