FWIW, RAIS revisited where the World's often turned upside down :-) - http://www.users.bigpond.com/pgscott/BFIDIY.html & on finding locations, other than in Evergreen: - http://www.users.bigpond.com/pgscott/SitingColdAirIntakes.html In an "other", but related category: - http://www.fordmuscle.com/archives/2000/01/airfilters/index.shtml mlp