What would be the gas mileage with a 350 engine and a 700r4 tranny in a Buick Regal?...

[mrlikemthick]

...(1986)? And yes a 600CFM Carb. Just asking. Yea I'll have power, but I would like to take it on the road every once in a while.

 

[ranger_co_1_75]

10-12 mpg. around town, maybe 14 on the road if you drive sensibly.