I'm hoping you guys can help steer me on the cam/heads idea, what converter to look at (I have no idea what gears it has and the rear tires are 275/60/15's)
Going to be hard to recommend a converter without knowing the Gear ratio and tire diameter. ...
I'm not the engine building expert that some of these guys are, so I'll just say that to me your combination sounds pretty good.
I have a mild 318 build in my '68 Barracuda and while it weighs less than a D100, it moves pretty good!
Keep us updated on your build!
The 318 is a great small block Mopar!