I had HKS 264 step 2 for about a year I loved them made great power great mid range power
Now I have Crower 272 with a 12.5 mm lift very very aggressive lopes like a V8 but I wouldnt reccomend them unless you are true boost whore and dont mind buying a farera valve kit and a HKS lash killer kit both of which are about $500 each

in my opinion for your s14 and you want to keep the NVCS I would buy every part tomei makes for your NVCS and go step 2 264 with the springs and retainers that way you can rev up to 8000rpm but it all depends on what power you want and how you want it to kick in If you want I can show you some dyno sheets on all the different cams I have tried to show you the differences in powerbands but mine is a s13 tho

stage 1? who is everyone?