you wont see 280WHP. Maybe 280 to the flywheel. The jrsc start to become useless after 9psi because of the heat it causes. LHT makes an "intercooler" upgrade but even then ive only seen 3-4 over 280WHP. The best cam combo for a JRSC setup is ITR exhaust cam and a gsr intake cam. Ask vteckidd he had one on a ITR motor. If you want to look deeper into these setups go to honda-tech.com in the forced induction forum and look for the JRSC thread, lots of good info in it.

If you want more than 250whp i would go with a decent turbo kit with a small turbo IMO.