Damn that's a great looking car there Bob.
MY OLD BIG block 73 dart ran a few 10.49 in the 1/4 with the same size and brand tire you have. My friend that has my old 71 Duster has been in the 10.30 at 132 mph with the same tire.
Very cool Bobby, I love these 275 tires. My car has a ton of potential to go faster but I'm keeping it 95% street with 3.23 gears, full exhaust, small tube headers, mechanical water pum and fan, street converter, 4150 carb etc.
