Help me hook this thing up... I have the Chevy guys gunnin' for me...

First off Magster65, your Dart is beautiful!
You've received some good info here. The main thing with a stock Dart is tire fitment.
I think you're gonna be limited to a 255 tire without moving springs and possible mini tubbing. Getting a 275/60/15 in there should be your goal. At the track I run a 275/60 M/T Pro Drag Radial in the mid 10's on 92 octane with 3.23 gears, but it's a 500" engine. The 275 works great. I use the old factory leaf springs that came on the car but I had one new leaf added to each side, cost only $50 each.

If you can move the springs in and run a Caltrac system you should have no problem hooking up with a good tire. A 3.55 gear would probably work fine, 3.73 at the most with a stroker I would think, and a short tire. I run a 3.23 in my car because even a 3.55 was kinda miserable on the highway but that's only my opinion/preference, everyone is different.

Good luck and feel free to ask questions!