little help here

[Pat1234]

ok maybe im starting to change my mind a little on the 1000rwhp , need to think n more research on it , so how long will stock internals hold up on 800rwhp , i might not drive it much but when i do its gonna go throw h*LL n back every time , is the 67mm turbo good have 800rwhp n how high of boost are we talking about 25+ psi , do i still need head work ( port n polish or is there more i need to do like vavle train)for 800 , im sure cams n cam gears would be good to change aswell are 272 cams fine, im not liking that hks exhaust , is 3.75'' fine for 800, the dragger is nice n apexi but not 4", what about cluth n flywheel , i know on sti's flywheel aren't good to have, as far as wideband witch one i see so many