Calculating fuel efficiency on a 1970s car

[JohnRob]

@david_2018

You might also want to do some research to see if the carburetor needs any modifications in order to run the alcohol/gasoline mixture that is commonly sold these days (depending on which country you are located in).

Trying not to be negative but it seems the increase in fuel economy while maintaining was achieved by fuel injection.

Is there any way you could get an emissions waiver for your vehicle (age etc).