For a guy who hates slant sixes, you sure do post in the slant six forum often. Do you have some kind of secret slant six fetish you need to talk about? You can't stay in the closet forever. :toothy10:
The slant 6 "gang" doesn't claim that they get 30+ like crazy. In fact I'm going to call BS on anyone that claims to get 30mpg with a slant unless it's a finely tuned stock Feather Duster or Dart Lite.
18-19 around town and 22-23 on the highway are about as good as you can get with a 904 tranny and a 7 1/4" rear w/ 2.76 gears. You can slightly up that with an OD transmission and/or a slant specifically built for economy.
Guys that are claiming to get much more than that are either exaggerating, aren't calculating and testing their mileage correctly...or they're just really lucky and have an engine, carb and car that just work perfectly together.
