In a message dated 9/27/01 5:56:05 PM, mikeg@xxxxxxxxxx writes: << What I have noticed is that it takes a LOT more power to run 85 mph than it does to run 65 mph. I've got the gearing for it, just not enough umph from my 4 banger. >> IIRC, wind resistance increases exponentially...i.e. a slippery shape counts more than HP at higher speeds... Tony in NJ W.A.S.T.E.