Hi I can't recall when it happened as I don't normally run a boost gauge but I put one in today and my stage 3 setup is only making 20psi and holding 18 , I have looked into it and should really run 26 and hold 24, ( someone correct me if I'm wrong)
I haven changed any parts or interfered with anything , can't hear any boost leaking, is it a case of getting checked for a boost leak or is there any other common reasons

Thanks