For my current build I have been thinking about mileage as well as a ton of torque.

The car I'm working on is a 1941 Chrysler New Yorker.
Engine will be a 496 stroker with 10.5 :1 compression.
Aluminum GMPP heads, Edelbrock Pro Flo XT intake, LS1 ECM running the sequential injection and controlling tranny shifts.
Transmission is a 4L80e with a GearVendors overdrive unit screwed behind it.
3.55 gears with 29'' tall tires.
I'm guessing 4200 LBS for the car when finished.

I'm hoping for 20 MPG on highway cruising.

Any thoughts on this?