|
You'd be amazed at what many of these older cars can get. I went to a Pontiac Oakland Convention in the early eighties. I had a 1965 GTO Convertible with a stock 389ci, 3X2 bbl carburetor set up, four speed and 3.90 rear gears. BTW that center 2 bbl carb was pretty small compared to the end units. It wasn't that bad on gas as long as you didn't open up the other two fuel dumps. It had the aerodynamics of a cinder block, weighed around 3,500lbs and rolling on Bias-ply tires.
I got a hair over 19 mpg on my way up and back with the top down at 55 mph. I always wondered what I could have gotten with say 3.08 or even 2.73 rear gears in that car on the highway.
My buddy was working at a Chevy dealer at the time and drove his take home car a brand new 81 Z/28 automatic to the convention. He barely got 17 mpg on the exact same trip running the speed limit of 55 mph.
|