Tell us more about what you have. The description above is a little vague. So far, you have a 3600lbs. car w/a 4spd trans and 2.76 gears with a 360 ready to be built for driving.
If you need pistons, I’d use ether the KB-107 or the Federal Mougal 116hp pistons. I would not have them set at a zero deck height but just measure where they sit, as in how far down in the cylinder they are. Last 360 I did had the KB-107’s sitting .020 down in the cylinder. Combine it with a .038 or a .050 head gasket results in a 9.04-1 to a 9.27-1 compression ratio if your using the stock cylinder heads at a possible 72 cc chamber. This will allow for 87 octane.
You didn’t state what the camshaft specs are. That would be really helpful. I’ll continue with as if I was doing this and I don’t have a cam. The intake duration would not exceed 210@050.
I’ll leave it at that.
Considering your very tall 2.76 year ratio, a larger cam might cause an unfavorable dead spot condition in power down low.
Are you using headers? A 4bbl carb? What size tire?