Better Torque From A 318
True, mileage masters they’re not known to be.
There’s not much to do to help the ‘98, the ‘89 could have used some hot rod mods.
In my ‘79 Dodge Magnum that had a LA 360/904/2.76 gears, I was able to get 20 mpg Hwy. and around town, it was 16/17.