This is my 1974 Plymouth Road Runner..
It now sports a 383, 4-speed, and an 8-3/4 rearend with 3.91s..
UPDATE!!
Got some new wheels and tires, and also redid the engine bay!
New Aluminum Heads, Cam, Water Pump, and Carb
and here's the old one
And here is a quick little video of the car in action :)