[red1970mustang]

My 393 with 5 speed and 3.50 gears has averaged 14.3 for the last 13,000 miles. Only gets 15 on the highway. I have to disagree with too much horsepower for the street. The car is a blast to drive, but then again I do mostly just putt around. A lightly modified 289 makes a great street engine. To each his own. Build what you want to drive.