While I’m waiting for my pressure tester to arrive. I started her up and after about five minutes of throttle she was able to stay on. Took her for a drive got warmed up, got back home turned off the car. Turned on immediately after and it started up. Waited five minutes, wouldn’t start. Removed the airbox cover and pushed up on the valve, and it started right after that. I did notice a hissing sound, which I tried to capture in the following video. Is this normal or is the sound of a vacuum leak?
https://youtube.com/shorts/-ntXQK6TFpA?feature=share