In my case its a nicely built 350 coupled to a 700R4 then into the original 3:90 rear.Thats in my 55 2nd series.It performs and handles just great,and gets 20 MPG all day long.Other than being lowered at all four corners it looks like a plain old 55.And oh yeah it does have a late model S/10 seat in it.And with the headers and Flowmaster exhaust it sounds mean.Set up just the way I like it.Course a lot of other people would do it differently.