Cayman,
The accelerator cable and spring should be replaced.
The intake gaskets seems they used the factory metal turkey pan and neoprene gaskets for the rails. Replace them with High Perf aftermarket intake gaskets and silicone bead on the rails.
The valve cover gaskets I would install studs as factory on the Boss 302. Makes it simpler and use rubber gaskets instead of cork and the gasket stay in place. Copper coat one side so it sticks to the head ...makes it easy to remove the cover.
Ron
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