14b is the 1st gen eclipse turbo or is it that 2nd gen? Anyways.. i wouldn't push more then about 7-8psi on internals with over 100k miles on them. You might blow it up anyways. Its hard to tell the condition of them and all. It could blow with 4 psi or it could handle 15psi for 10 yrs. But, safely, around 7-8psi.