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Those are the FRPP Stage 1 ported heads. They work great and really help the motor breathe. You will need to get new lash adjusters and followers, unless you can clean your existing ones up real good. I added some beehive springs and retainers to mine before they were installed because it is far easier to do with the heads off the engine.
Livernois heads are good, but if the FRPP's are in your budget I'd prefer them being they're new castings not reman used ones.
I'd rather do it right the first time remanufactured or not then to buy Stage 1 heads that will leave you wanting more and possibly be the restriction point later down the road. But thats just me!