Built with help from Super Chevy Magazine to demonstrate the potential of a carbureted, centrifugally blown engine using 91 Octane pump gas and off the shelf parts, this 3,300 lb. car has far exceeded expectations, evolving into an extreme example. This particular 427 ci combination is the product of lb/ci rules observed in heads up racing. When rules aren’t a factor, this level of power is more commonly produced using a 502 based engine, often times using higher octane fuels. This engine makes well over 3 hp/ci with an Air to Water intercooled F-2 ProCharger breathing 28 psi of boost through a pair of lightly modified 450 Holley carbs. Extreme ProCharged applications running racing fuel are currently making in excess of 5 hp/ci, propelling cars to speeds well in excess of 210 mph. ATI does not recommend duplicating this Nova’s particular combination, as there are easier ways to achieve these same power levels. Please contact our technical service staff to determine a combination that best meets the needs of your particular application.