Here is the expensive way to reduce MPG and save the environment. I've talked to this company on occasion to see when they will be mass producing their rotary valve heads for Chevy V8's and 6's. They have done Ford 302 V8's and Mercedese 6's with remarkable horsepower gains, lower emissions and higher MPG. I wish I had the $14,000 for a tricked out injected 350! Check it out:
http://www.coatesengine.com/engine_of_the_future.html and
http://www.coatesengine.com/photo_gallery.html
