Your engine is controlled by your cam, so if you have a cam designed for gas mileage you will get gas mileage. If you have a cam for power, you get power...

The cam controls the valves and such... If you would have changed the cam in your camaro it would have gotten a big gain in power. muscle cars only stay low-tech if that's the way they are left. I know a guy with a 650hp street driven camaro with twin turbo. Technology and muscle :thumbup: