I'm using a single 3 port Holley solenoid, single turbo, twin wastegate. The line coming from turbo running to the bottom of both wastegates and teed to the #1 port. The #3 port running to the dome. It will only make 10-12 psi with 10 psi springs in the wastegates. Boost vs Time is 10-18 psi. The dome sensor is working correctly and the only thing on in the Holley is the Transbrake Launch Input. The solenoid is wired +12V one side and PWM output on other side. I've tried everything from switching the line routing all around, to everything in the computer and nothing changes. I can't find any leaks anywhere. All help & advice is appreciated.