How can I get a little more hp???

I have a 99 honda accord V6 and I was looking for something that would give my car just a little more power. Already having a Short Ram intake under the hood, which pretty much doesn't do much. I was wondering if upgrading spark plugs and ignition wires...something down that lines.

If anyone has any suggestions as a way to get some hp other than like a supercharger, let me know!

headers - 10-15whp, most in middle of RPM range
denso iridium IK16 - 4whp, lower part of RPM range
UR pulley kit - 10whp, bottom of RPM range
J32A2 (TL/CL typeS) camshafts - 10whp, middle of RPM range, you can get higher numbers if used with piggyback ECU's (Apexi VAFC, Greddy E-Manage, UNICHIP)
intake and exhaust systems move power from lower RPM range to upper RPM range.

numbers are approximate.