I know this. Most cars are about 2mpg less than what they were rated in 07. I just think a LS1 should be slightly less than a 300hp v6…and my 30 mpg was actual…not the rated mileage.
Not bad for the v-6…lets hope the SS time is underrated…that isn’t great considering 400 hp and a magazine ran a 13.2 with a LS1. I doubt that 300-400 lbs makes that much of a difference. I bet one these hit the tracks they will be in the 12’s.