No I said to keep the same power to weight ratio. The 318 weight in at 525lbs and the 360 at 550lbs. So the 360 would need to make 445hp to be exact.
It would be going in my 1976 Duster, 4 speed car.
What kind of MPG difference would there be between a 318 and 360? I know with early Dakota people report a 1-2 mpg loss when swapping from the 3.9 to (usually) 360.