Street tires and weight (and altitude) are keeping my cars right at the limit. The 71 Charger is running mid 11's @ 120 MPH, but it weights 4150 pounds, and has poor 60' times. The '69 Coronet Convertible (not sure what it weighs), but is running BFG Radial T/As 255x60x15, and they spin through first and second gear, so I just above 14's @ 105 MPH. This is at Bandimere, so at lower altitude I would see how bad the tire spin is?
