Cams? valve springs?

[gsxer]

Hey everyone well I was wondering do I need to change anything necessary in the car if I want to install my DKS cams? I heard on other forums that changing the valve springs is necessary? Is this true?

PS:
Any suggestions on what I need to upgrade would be great thanks.
(MODS BELOW)


-yinchinzhong

MODS:

6-bolt swap
ARP hardware
QPR EGR Block off
BS elim kit
'90 oil filter housing
small 16g turbo
fmic
ported 2g exhaust manifold
255HP fuel pump
2.5" dp, w/ dual 3" resonator
Apexi AFC-2 (changing to dsmlink)
650 injectors
polished 1g fuel rail
MBC
aluminum radiator