Neat car - not sure if this 455 is original, or if it came instead with a 400, but the factory 4-speed makes it interesting to me.
There was a '73 400/4-speed triple black Grand Am project car for sale on the Performanceyears site for a few months - would have been a cool one to do.
Link to 1974 Pontiac 455/4-sp Grand Am eBay auction
2H37T4P126659