Long-commute horsepower junkie

[Bullockracing]

Hello all, thought I had already posted up an intro, but no... 72-mile commute in a '99 Mustang GT convertible (4.6 SOHC V8) 5-speed... Not doing too bad on mileage, considering the few mods. Most of the hypermiling tips don't work for me; I think I'm hitting the limits based on the length of my commute and engine size... Lots of good info on here, though. I was on DIYelectriccar.com trying to see about building a PEV Mustang, which didn't work out based on length of commute.