how much boost can the stock internals of on 04 ralliat can handle i want more boost but dont wanna blow my engine what all should i change to get more boost if i tear the motor down right now im at about 4psi

 

You can get around 10 psi at most stock , without having to worry to much but it will have to be tuned correctly. I'd say 8 psi is a fair safe range to be in stock but if you build up the sky is the limit. How much are you looking to spend?

 

hackish warned me that around 12psi the head can lift...so some ARP bolts or studs would probably be a good idea...