What is the proper spark plug gap for a 327 1965 Chevy Corvette?

The proper spark plug gap for a 1965 Chevy Corvette 327 depends on the specific engine configuration and the type of spark plugs used. There's no single answer.

You must consult your owner's manual. This is the definitive source for your specific car's specifications.

However, a common range for a 327 in that era would be 0.035" to 0.040". But again, this is just a general guideline and might not be correct for your vehicle. Checking your owner's manual is crucial. If you don't have the manual, you can try searching online for a digital copy specific to your Corvette's VIN or engine code.