My car is relativly stock engine wise, so far the only upgrades i have are 8mm wires, iridium plugs, aem v2, apexi ws2catback. I'm thinking about getting an smsp header, some camshafts, and a valve train upgrade. What do you guys recommend in terms of a brand for camshafts and valve train components. I was thinking about just getting springs and retainers, do i need valves as well? Also what kind of power can i make from these mods? Any other suggestions on anything else i need to add or do?

 

did you already read here?
https://honda-tech.com/zerothread/2168311
there is a lot of helpful information here...