I bought a set of 4 from skymyke@mindspring.com for $28.00 including shipping. he was seeling them on e-bay. I called and asked for 4. gave me a price and sent an invoice through pay pal. The deal went smooth. He sent his phone # and was good to deal with. I went this way because I did not have to wait for an auction to end and got them sooner. he must deal w/ford stuff because he had design 2 and 3. I went with the design 3.
gas mileage, humm, probably would be better if it my lead foot would stay of the pedal because of the fun response with the injector install. lol
:D