340 HP or 360 HP - Second Thoughts

I may have jumped to a conclusion earlier when I discounted the 360 hp high performance engine. I had discounted it based only on the radiator support configuration. I've re-examined the radiator support and I don't find any evidence of the Daytona Blue color that came with the car (the radiator support would have had some over spray from the painting process). Colors I do find are copper brown (the last color the car was painted) and gloss black (one of the other colors originally offered). Based on this I don't believe we can say conclusively that the radiator support is original to the car which means we can not conclude the 340 HP engine was originally installed. In fact, the Heater Delete and sintered brakes options suggest 360 hp. From the Complete Corvette Restoration publication I quote, "Of the 124 1963 Corvettes equipped with Option C48 (Heater Delete), our survey located less than a dozen. Most were equipped with the Z06 performance option (360 HP engine) and one of these were originally sold in Hawaii. Only two of the 1963 Corvettes reporting option C48 were not equipped with Z06, and both were coupes... ". I have no expectation that this is a Z06 car, I am only pointing out that most Heater Delete cars came with the 360 hp engine. So, what does this mean? What do we do? What motor gets installed? Lets think about this...