Getting tuned this season and was weighing options on any mods/insurance I may have left out...

Car: '03 Evo VIII
Mileage: 42k mi

Current mods:
-->Evo IX turbo
-->Megan O2 housing
-->3" TBE
-->ACT MB7 HDSS
-->Walbro 255
-->MR BOV
-->Muse LICP
-->Perrin intake
-->Hallman MBC

Do I need bigger injectors or aftermarket headstuds? I am planning on running no more than ~24 psi

 

Bigger is always better but you're fine with 24psi.

 

head studs, gsc s2.

 

But then I need valve springs and retainers...LOL

 

The only thing I would suggest is headstuds, maybe some port work on your exhaust manifold while you have it off.

 

how much power you shooting for?

 

~330 whp