READ!
You'll need really high compression which can be achieved several different ways such as pistons (PM7 pistons from a DOHC D16A1 and P29 pistons from a DOHC ZC are great OEM choices), or thinner headgasket, or milling your head, and flat faced valves even. You'll need a big cam such as the Crower stage 3 and upgraded valvetrain. I wouldn't even bother with an intake and intake manifold...I'd go with ITB's! They're the shit (but be aware that you may get really bad gas mileage with them). As for a header, definitely go with a custom piece. All the mass produced headers like DC Sports, Megan, Kamakazi, etc. won't cut it. You will definitely need your head p&p by someone who knows what they're doing. and I guess all I can think of is a nice 2.5" exhaust and a high flow cat or no cat at all. With that cam and the ITB's you're probably going to at least want to step up to 280cc injectors from a prelude...hell, even some 390's from a DSM wouldn't hurt. You're going to want to get ARP head studs for sure and MAYBE some ARP rod bolts if you're going with stock rods. Oh last but not least...a REALLY good tune. Look into Crome(FREE) and Uberdata(FREE) or if you have the extra cash then possibly Hondata S200 or S300($600!) I hope that helped you out some. Good luck!