boost leak

The mechanic that put in my port injection snapped the bolt that connects the throttle body to the intake manifold. I plan to try an extractor kit to remove the bolt, but I need to order a fresh set along with the throttle body gasket itself. I suck at reading through these part numbers, anyone...

I suspect that my car has a boost leak and Im trying to do a boost leak test however the pressure is not holding because the valves in the engine are open. which makes it impossible to verify wether there is a leak or not Does anyone have a solution for this?