Can going from 1.6 to 1.7 ratio rockers improve cruising mpg in a '93 351W EFI? I found an article with aircooled VW dyno tests comparing 1.1 to 1.4 ratio rockers. The 1.4s made more power from 3500 and allowed the engine to rev higher. No torque charts. If the same results apply to a 351W, will that help mpg?

Sixto
87 300D