or buy the faster engine and mod it.[8D]
[link=http://www.ebmods.com]EB MODS ftw[/link]
ORIGINAL: Hincappe
dont mod.
save money and but a better engine
e.g $150 buy Novarossi N21b
$150+80=$230 Buy a RB S7
$230+80=$310 Buy a RB WS7 III
$310 + 80 = $390 Buy a RB C6BB
etc etc
no need for aftermarket mod, just BUY a faster engine.