If you had a 2.76, a port and a 100 dry shot you'd be in the mid ten range. Those cars are 10's stock with any decent DR.
The C6 Z06 Fast List:
Bone-Stock on Stock Tires ------*Current Avg. 11.431 secs. @ 124.54 mph 1.83 secs
1----10.981 @ 128.90--1.77---jamie furman ------'06. Details
2----11.138 @ 127.20--1.76---Ranger------'06. Details
3----11.242 @ 122.38--1.68---Dr.Ron------'06. Details
4----11.311 @ 122.89--1.80---BLU-BY-U------'06. Details
5----11.349 @ 124.97--1.75---zosix427-----'06. Details
6----11.450 @ 125.92--1.88---dgdoc------'06. Details
7----11.502 @ 126.08--1.96---C5 Frank-----'06. Details
8----11.545 @ 123.16--1.83---dpracing-----'07 Details
9----11.557 @ 126.68--1.95---Incon306-----'07 Details
10---11.560 @ 124.53--1.85---Zlicious-----'06. Details
11---11.627 @ 121.67--1.83---BLK BZT-----'06 Details
12---11.632 @ 123.43--1.96---Z06kait -----'07 Details
13---11.709 @ 121.41--1.86---JWGJR------'07 Details
Bone-Stock, except Non-Stock Tires ------*Current Avg. 10.960 secs. @ 128.19 mph. 1.69 secs
1--10.831 @ 130.05--1.70---jamie furman ------'06. Details
2--10.856 @ 129.50--1.67---Ranger------'06. Details
3--10.932 @ 127.63--1.62---Dr.Ron------'06. Details
4--11.222 @ 125.61--1.79---Incon306------'07 Details
Bolt-Ons without Internal Engine Modification ------*Current Avg.11.157 secs. @127.00 mph
1---10.764 @129.77--1.56---07WhiteDevilZ------'07 Details
2---10.821 @126.16--1.61---m3corvette-------'06. Details
3---10.999 @127.74--1.71---LPFSTheFett------'07 Details
4---11.083 @126.38--1.73---KLLRVET-----'06. Details
5---11.126 @129.66--1.84---Slow Poke-----'07 Details
6---11.139 @129.35--1.78---RWTD-----'08 Details
7---11.234 @132.88--1.83---Jorday-----'07 Details
8---11.249 @123.24--1.73---Jeenis-------'07 Details
9---11.281 @125.61--1.77---355Spider------'06. Details
10--11.306 @126.36--1.78---layjzay------'06 Details
11--11.371 @123.95--1.83---atomicfusion -----'07.Details
12--11.511 @123.00--1.80---blitzu-----'07 Details
Internal Engine Mods plus Bolt-Ons ------*Current Avg. 10.670 secs. @ 130.85 mph
1--10.525 @132.71--1.57---07WhiteDevilZ------'07 Details
2--10.629 @130.91--1.59--- MR Z-----'06 Details
Power Adders (Nitrous, Turbo, Supercharger) ------*Current Avg. 10.494 secs. @136.34
1---9.946 @139.85--1.46---07WhiteDevilZ------'07 Detailscam, ported intake,polished heads, headers, tune, clutch,c5 axles,airfilter,coldair,no cats,160 thermo,ewp,nitrous 175hp
2--10.765 @131.90--1.66---ANIL8-U -----'06 Details4.5 pounds of boost(pro-charger MC Racing KS), AR headers, Spec stage 3 plus, and BFG's
3--10.773 @137.28--1.80---Super4x4Duty-----'07Details headers, 3" x-pipe, CAI, HP Tuners Pro, 160 t-stat, 125hp dry nitrous
The C6 Z06 Fast List:
Bone-Stock on Stock Tires ------*Current Avg. 11.431 secs. @ 124.54 mph 1.83 secs
1----10.981 @ 128.90--1.77---jamie furman ------'06. Details
2----11.138 @ 127.20--1.76---Ranger------'06. Details
3----11.242 @ 122.38--1.68---Dr.Ron------'06. Details
4----11.311 @ 122.89--1.80---BLU-BY-U------'06. Details
5----11.349 @ 124.97--1.75---zosix427-----'06. Details
6----11.450 @ 125.92--1.88---dgdoc------'06. Details
7----11.502 @ 126.08--1.96---C5 Frank-----'06. Details
8----11.545 @ 123.16--1.83---dpracing-----'07 Details
9----11.557 @ 126.68--1.95---Incon306-----'07 Details
10---11.560 @ 124.53--1.85---Zlicious-----'06. Details
11---11.627 @ 121.67--1.83---BLK BZT-----'06 Details
12---11.632 @ 123.43--1.96---Z06kait -----'07 Details
13---11.709 @ 121.41--1.86---JWGJR------'07 Details
Bone-Stock, except Non-Stock Tires ------*Current Avg. 10.960 secs. @ 128.19 mph. 1.69 secs
1--10.831 @ 130.05--1.70---jamie furman ------'06. Details
2--10.856 @ 129.50--1.67---Ranger------'06. Details
3--10.932 @ 127.63--1.62---Dr.Ron------'06. Details
4--11.222 @ 125.61--1.79---Incon306------'07 Details
Bolt-Ons without Internal Engine Modification ------*Current Avg.11.157 secs. @127.00 mph
1---10.764 @129.77--1.56---07WhiteDevilZ------'07 Details
2---10.821 @126.16--1.61---m3corvette-------'06. Details
3---10.999 @127.74--1.71---LPFSTheFett------'07 Details
4---11.083 @126.38--1.73---KLLRVET-----'06. Details
5---11.126 @129.66--1.84---Slow Poke-----'07 Details
6---11.139 @129.35--1.78---RWTD-----'08 Details
7---11.234 @132.88--1.83---Jorday-----'07 Details
8---11.249 @123.24--1.73---Jeenis-------'07 Details
9---11.281 @125.61--1.77---355Spider------'06. Details
10--11.306 @126.36--1.78---layjzay------'06 Details
11--11.371 @123.95--1.83---atomicfusion -----'07.Details
12--11.511 @123.00--1.80---blitzu-----'07 Details
Internal Engine Mods plus Bolt-Ons ------*Current Avg. 10.670 secs. @ 130.85 mph
1--10.525 @132.71--1.57---07WhiteDevilZ------'07 Details
2--10.629 @130.91--1.59--- MR Z-----'06 Details
Power Adders (Nitrous, Turbo, Supercharger) ------*Current Avg. 10.494 secs. @136.34
1---9.946 @139.85--1.46---07WhiteDevilZ------'07 Detailscam, ported intake,polished heads, headers, tune, clutch,c5 axles,airfilter,coldair,no cats,160 thermo,ewp,nitrous 175hp
2--10.765 @131.90--1.66---ANIL8-U -----'06 Details4.5 pounds of boost(pro-charger MC Racing KS), AR headers, Spec stage 3 plus, and BFG's
3--10.773 @137.28--1.80---Super4x4Duty-----'07Details headers, 3" x-pipe, CAI, HP Tuners Pro, 160 t-stat, 125hp dry nitrous