So remember that Hennesey Camaro with the tuned LS9? This is their ZR1 with it.
The massaged LS9 features a upgraded supercharger pulley and blower snout (boosting boost from 11 psi to 14 psi), and intercooler upgrade, K and N air filter, stainless steel headers, high flow cats, and a reprogrammed ECU. This results in 705 hp and 717 lb-ft of torque; the quarter mile in 11.03 @ 136 mph.
Another further pumped up ZR1 is in the works called the ZR750 with 755 hp and 730 lb-ft.
More info and quarter mile video.
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