My Charger went from consistent 12:50's @ 110 MPH, to inconsestent mid 11's @ 120 MPH with a new engine making 100+ more power. That is at Bandimere, like 9,000 ft DA in the summer. The Charger is 4150 lbs, but a street car. It needs adjustible shocks and suspension work, and likely more tire than the 10.5x27" drag radials. The extra power has reduced the no so great 60' times from about 1.7 to 1.8+
