Finally got my transmission back and installed with punisher valve body and circle D torque converter. Fired the truck up for the first time with the supercharger finally installed. Everything seems good and is working like it should on the lift. Went to check the oil after a short idle run and noticed I had a suction at the dipstick that released when I pulled it out. Checked while running and it’s pulling vacuum. Not sure if I forgot to do something. Installed a breather oil cap, removed all the emissions and capped the lines, installed a new pcv valve and screen under it. Could my pcv valve not be working right?