If your going All-motor, do not skimp out on the header. If you cant justify spending 5-1000 dollars on an RMF/SMSP header, then you shouldn't build it. It doesn't cease to amaze me, all of these people building a powerful, stout N/a four cylinder.....throw on some shitty ebay/dc sports headers. They really hurt you for power.

It's going to take some money, but it would be fun afterwards. I wouldn't do LS/VTEC. You can make plenty of power and more reliable than those frank setups for cheaper. Check out Madsteez's old four door thread. He made 217 through a shitty header. I'd say browse around on honda-tech in the all motor section and research for a little while.