What defines a BOSS 302 engine? (Mustang advice)?

So I'm looking to purchase a 98 mustang. The guy selling it doesn't know a whole bunch about what was done to the engine, he said he bought it like this but he claims it was swapped with a Boss 302. I don't know much about muscle cars, so is there any way to actually verify this is a boss 302? I was told the boss 302 has a 302 Windsor block and 351 Cleveland heads. Since this engine has edelbrock heads, does that not make it a boss? I've attached a picture of the engine if that helps at all.

Also with the 302 engine, edelbrock heads, Parker high rise intake manifold, Holley carb and a cam he said it makes around 370 hp. Does this sound realistic for that engine and modifications?

Any advice on this car before I look at it or purchase it would be greatly appreciated! The body is not in the nicest shape, and it has 177k miles (only 10k on the engine). He's asking $3200. Is this a good price for this car with said modifications?

Thanks for the help!

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