MIDNIGHT

here is the set up so far

98 ls block with aebs sleeves
stock polished crank
eagle rods with upgraded bolts/ je 9.0:1 pistons
stock head
stock cams with skunk2 cam gears
jg intake manifold and 68mm t/b
4 1000cc rc injectors
turbosmart 40mm wastgate
equalength manifold(turboperformance)
3" exhaust
large front mount size yet to be known
2.5 i//c piping
60-1 t3/t4 .48 ar
hondata s200


for my 500hp goal will i need to upgrade the valve springs and valves?
and do ya see any problems with the setup?

stock cams

Sprayteg

I think .48ar wil be to small for your goal. Beside this, to achieve that kind of power, i would go with cams/springs and more rpm that the stock rev limit. Porting the head will help a lot too.