It's really not that big of a deal. Jump in behind the wheel and show her how it is done, unless she's got no legs! Seriously though, she's got it in reverse if it starts to move it will move away from you. You should not be getting any leaks from the booster line as there is a check valve to prevent that, you might want to take a look at the check valves and see if they are working or not. I like the idea of the vacuum cleaner on the tail pipe, just like using a smoke machine in reverse. They only problem though is that with the rubber hoses just because it will blow pressure out does not mean it will allow vacuum to be sucked through. I could see that stuff working like a one-way valve very easily. Now if we are talking paper gaskets and things of that nature I have no doubt it will work well. As far as leakage out of the flame trap it depends upon where it is leaking from the flame trap and exactly how you are pressurizing the system. Remember the PCV that sits ontop of the oil trap box is connected to both the crank and the intake system. I still say that the best way to find boost pressure leaks is by doing a power brake on it and spooling up the turbo. By doing this you are checking the system under actual working conditions.

Mark