I agree, my point was just simply that my fairly stock 03 Mustang GT gets 27 mpg tops while that Trans-Am gets 25 mpg with a larger engine and can run 1 second quicker in the 1/4. I wasn't suggesting N/A because to get a N/A car to do that, you need a lot of fine tuning. However, building your own GT500 w/ 3V heads should get you down to 11's with a good cam and a good head porting job while maintaining good mileage.