Slant mpg

Drive it nice and you should get mid to high 20's depending on how far and how fast you drive. I have a Mopar friend that gets 27hwy with a 46 Plymouth
coupe with a slant and a 833 od. trans. It's a tubbed 8 3/4 with 3??? gears. I
get 20mpg with my 66 Dart with the HP273.
You should do good! Mike