Join Date: Aug 2008
Location: Saskatchewan, Canada
Re: MPG ~ 351W bored 0.030 over
I always thought my car did rather well, especially for a car this big. I would always get a little over 20 mpg on the highway, loaded to the mud flaps, or completely empty with my stock, original 351W 2V, but with dual exhaust. I still have plenty of tuning to do on after the rebuild, but I did a short highway trip this summer and managed 18.5 mpg. These mpg numbers are with the imperial gallon, which is ~20% bigger than the US gallon, so everything goes farther on a gallon of gas north of the border.
1970 XL, 351W originally 2V, now 4V
670 Street Avenger, Edlebrock Performer intake, Comp XE262H, Flowtech Headers