Being that it is stone stock, the engine mount is a cradle mount bolted to the front of the block, the generator is bolted to the left (drivers side) exhaust manifold and if it has power steering the pump is bolted to the back of the generator. I don't remember the original tire size but it should be somewhere around 6.95's. If it's an automatic it should be a cast iron powerglide and in their stock form they're not real receptive to large cams.
The power pack option included a Carter WCFB and better heads than it's 2 barrel cousins. A triangle cast into the end of the heads identify them as power pack heads.