Hey guys performance and mpg now go hand in hand with this new thing they call Fuel Injection ... see a very cool example here - 555ci BBC making over 600hp and still getting 20mpg on the highway. I can deffinetly see EMS getting 35mpg in a 6 speed car only keeping 1500 rpm's.
Hey EMSFather, I just read your post on your 320 RWHP in the other post, but I recall you saying that your car was running lean, and with a good tune, you being able to pull more horsepower with it. That tune is going to bring your gas mileage down, but you'll be more powerful.