when it last run it did not use oil. it was as maintenance free as they come. its been in a bag for years now... no i didn't do a compression test.. it was a real good running 50,000 mile motor when in my yellow car.
I bet it wont need to be bored. I took my orig 340.to shop to get rebuilt at 70k miles and at drop off shop said we bore all engines. Then later came back and said taper under spec and honed it. Its still std bore today sitting in garage covered up.