The spark plug gap for a 1977 Corvette depends on the engine it has. Corvettes of that year came with a few different engine options (e.g., 350 small-block, 454 big-block).
You need to consult your owner's manual or a repair manual specific to your engine type to find the correct gap.
A general automotive manual may offer a range, but it's crucial to use the precise specification for your engine for optimal performance and to avoid damage.
