New head, low oil psi, 50% jake

[JasonD5746]

Ok, heres an update.. its cooled off outside, idle is at 650rpm, over 20psi nearly at 25psi mark. Was much lower in heat of day. Idled up to 800rpm, it's nearly 30psi, 38psi at 1200.. anyways, very possible they clunked the cam into a bearing, or didnt seat rocker shafts.. But how could they screw up the jake..?
Is there any way I can disable either actuator individually without taking cover off..?
Or disable the engine brake function of the turbo..? I'm getting a little noise on stage 1 with a few lbs of boost ,
but I cant tell if 1-3 cylinder jake is actually actuating or if it's just the turbo I'm hearing.