Hi, I have a 94 Honda Civic EX Coupe, it gets 35 highway MPG. I want to do an engine swap, but Im not looking for a drag racer. I want to keep my good gas mileage as much as possible, and I wont gut ANYTHING. Im only looking to beat stock cars, and the occasional bolt on. 2 cars I want to beat specificially are a 2002 Grand Am GT w/ Ram Air and a 1995 Ford Tauras SHO w/ Cat Back Exhaust and a K&N Air Filter, its got the Yamaha motor in it. Whats the CHEAPEST way to do this? Whats it going to cost? I definetely want to do an engine swap so that I can add more in the future.