200-220whp is a good realistic goal for a built lsvtec or b20vtec.
there are many many builds on the internet, do your research and you will see certain combinations of parts that work. copying someone elses successful build is not a bad idea.
how i would do it:
b20 block, 11.5:1 pistons, rods, new bearings, waterpump, oil pump, timing belt, seals, gaskets, etc. b16a head, cams, cam gears, dual valve springs, retainers, valve seals... if the budget allows there is more you can do to the head. you will need a good intake manifold, at least a 62mm throttle body, a nice header, nice 2.5" exhaust, a lighter flywheel and upgraded clutch, and most importantly some sort of engine management. you gotta have good tuning to be reliable and make 100whp per liter!
i didnt include a bunch of brand names because you should do the research. cam selection is important on an all motor build. if you are serious about a build, you should find what machine shop you are giong to use and talk to them about it. dont take shortcuts and find someone who can tune it good!