I have a 86 jeep Cherokee 2 door with a 2.5l 4 cyl. I was wondering what gas mileage i
will have and the power I can expect. Plus the same thing if I were to lift it 3 inches and
go from 27's to 29's. Thank you.

 

Less than 20, but more than 10. Three inches of lift and you're only going to put 235-75-15s on it?

 

Ya well i dont know what to expect if i were to put big tires on it since it is only a 4 cyl

 

With the 2.5L, proper gearing is your friend. The 2.5L may not be a rocket but it is a reliable little engine.