I just take mine to a cylinder head shop and have em do it for me. But yeah like you said you should take it out. Might as well bring it to a shop so they can check things over while they do it, maybe get a valve job done. If you've been kinda beating on your engine the 420As valves aren't that tough...

http://www.hadesomega.info -car specz and movies 95 Eclipse RS | 76' 280Z | 89' MR2 | 99 Neon | 91 Zephyr
Who sez FF can't drift?