OK how do you pressurize the intake side without it leaking through the head? I can see testing from turbo inlet and blocking off infront of tb. And i can see by taking the time to take the cams out you test all the up into the head, other than cam removal? could you block the backside of the turbo, and make sure the oil cap and dipstick tube are sealed good? That seems like it would pressure test the entire system engine included