I would definitely upgrade the valve springs and retainers if you are running CTR cams. To fully maximize the HP gain, you will want to be able to rev to at least 8600rpm like the B16B. I would also recommend the ARP rod bolts for anything over 8500rpm as well. You do have to retorque APR bolts after you break the engine in (or after a few hundred miles), but you only have to do it once (atleast thats what I do). Or, considering that this will cost you close to $2k, why dont you just buy a different engine? For $2k you can get a JDM F20B. It is virtually the same engine as the jdm H22A type S with steel sleeves, slightly smaller pistons and a shorter stroke. It has 200hp stock, and is good for about 165whp, which is about what you will get out of a B16A built to the specs you have listed. The main advantage is that it will be a lot more reliable than an engine that has been rebuilt.