Lets make the best real world *MPG* THREAD EVER !!
My old 1975 Plymouth Duster. 25 MPG on the highway. 318, 2 bbl 999 automatic and a 2.45 gear 8 1/4” rear. 1973 340 manifolds and full stock dual exhaust.
Motor was bone stock except a 71 318 single plane 2 bbl intake and a carter 2 bbl carb. Electronic ignition, and I added B van (1986/1987 cruise control kit)
Transmission was a 999 (lockup 904 with a 2.75 first gear) built it from spare Dakota warranty parts. Electric lockup, just add 12 volts.
2.45 final drive ratio. 195/75/14 tires always run at 36 psi when traveling.
cruise on at 60/62 MPH, in the days of 55 MPH speed limit. That was my mixture and that was in the early 90’s.
Cliff Ramsdell
Duster is the middle car.
My old 1975 Plymouth Duster. 25 MPG on the highway. 318, 2 bbl 999 automatic and a 2.45 gear 8 1/4” rear. 1973 340 manifolds and full stock dual exhaust.
Motor was bone stock except a 71 318 single plane 2 bbl intake and a carter 2 bbl carb. Electronic ignition, and I added B van (1986/1987 cruise control kit)
Transmission was a 999 (lockup 904 with a 2.75 first gear) built it from spare Dakota warranty parts. Electric lockup, just add 12 volts.
2.45 final drive ratio. 195/75/14 tires always run at 36 psi when traveling.
cruise on at 60/62 MPH, in the days of 55 MPH speed limit. That was my mixture and that was in the early 90’s.
Cliff Ramsdell
Duster is the middle car.
