Keep the stroker - I have a mild 418 in my Dart with good performance and 14 to 15 MPG if I keep my foot out of it crusing around town.

10.1 CR (Ross 16cc Dish Pistons)
800 AVS Edelbrock on a Performer RPM
X-Heads (69.3cc) and stock exhaust
XE 274H Comp Cam (230/236 - .488/.491)
3:55 Gear


Here is a Youtube link - http://www.youtube.com/watch?v=DrKBbVmQVf0