At one time when I was full of the vigor of a younger man I had a full size 77 Dodge Monaco with a lean burn 440,long story short hemi cam, new ignition conversion, reworked the carb and duel exhaust with a gear change in the rear end. That pig went from 17.50s to 15.50s in the quarter, it was my shop loaner car for a few years and everyone loved it. It had 65k on the clock when I paid $150 for it in 88.