Glue is drying on the tester, however when I started to pull of the intake so I can use the tester I noticed the bov had a lot of movement on the cooler pipe, pulled off that section of pipe for a better look and the circlip that holds the bov to the flange was half way off and the bov was free to twist around and move on and out. Turns out the groove for the circlip is slightly too narrow and the circlip wasn't seated properly.
So I'll grind the clip down some, chuck it back together and take it for a spin while the tester is drying, should that fix the problem I have a tester for next time and if it doesn't, I have a tester to find out what else is letting pressious pressure out haha.
Will most likely run the tester anyway because no doubt there will be air escaping elsewhere.