The stock clutch will work....for a while. It all depends on how much you beat on it. I'd personally replace it.
My stock clutch ate shit at almost 50k (35k Stage I/II and 15k 385whp/367wtq). My future power goals are a
bit more lofty, 440-490whp, so I had a Spec Stage II clutch installed which I acquired from Jordan at Defined
Performance:
http://www.definedusa.com/catalog/product_info.php?products_id=10000279
I'm VERY happy with it. It is unbelievably easy to drive.
I am using the factory flywheel for now, but may have to replace it in the future because it's already been resurfaced
once and another go will drop it below tolerances.
I DD my car and it sounds like you don't, so a lightened flywheel might be a better choice for you, than for me. Lightened
flywheels can make a pretty noticeable difference in performance BUT if you go too light, it can be a pain in the ass to DD
on the street.