What will my 68 Dart 408 run in 1/4 mile?

68Dart500 said
Thanks for all the tips and suggestions so far folks. I'm starting to wonder if I should exchange my radial ET Street SS tires for some bias ply MT sportsman Pro ET tires (2 ply wrinklewall)? I talked to summit and being I haven't mounted my other tires onto the rims yet (that was going to happen this week) they said I could exchange them. Thoughts? It looks like I'd need to run tubes then as well and drill out my valve stem hole to 5/8.

Here's the tire: Mickey Thompson Sportsman Pro Tires 90000000208
Click to expand...
If it's a known fact that it will help which I'm not sure of cuz I don't know these tires at all it would be good to do it now. This just happened with a customer of mine with an older Trans Am. He wanted a different size tire and when they're put on they were the wrong size. Like a size too small instead of a size bigger lol the tire company had no problem exchanging them as we didn't drive on them.