318 Gas mileage?

Something is wrong here… I think you would need to be trying to get bad mpgs to pull off only 6-7…

This may sound backwards but you may want a gear change… With the 2.76s you probably need to really lay on it all the time to "feel" any power. Foot to the floor = mpgs in the toilet.

If you changed to a 3 something you would be using much less throttle.