I'd stick with pr3 in that case if doing an oem build. 10.4 compression is more than enough. there are a few people with well over 200whp with less than 11:1.

I would mill the head slightly to get some compression, and run a thinner headgasket.

When you reassemble the engine you might want to get the rods renotched for GSR rod bearings as they are skinnier and made of better material than b16's. it'll be good for a few ponies and add reliability.