What 2000silverbullet said and to add, these are not big blocks of years past. They need to rev to make power and thats all she wrote. You just need to look at the 6.2's power curve to realize you will not get the power you want down low without resorting to a supercharger and even then they are not as good as an oil burner. Last time I checked a Whipple charger would set you back over 7k so you might just as well have an oil burner as it works out about the same.