On the wastegate you need to feed it air. Do you have a Boost Controller yet? I would be careful if you dont. Set your compressor at a low level to start the test. When taking out the big spring I could control the boost from 4psi to 40+++ using my Hallman Boost controler!
On the BOV you can use a vacuum pump to check it out. I pulled out springs in both the BOV and the gates. I rebuilt the Wastegates also. Check out my thread for the explanation.