whats a good way in finding air/boost leaks?

soapy water. watch where it bubbles.

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^^ this in a spray bottle

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spray carby cleaner around the engine bay if idle changes you got a leak mate and it will direct you to where it is..

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cheers guys ill try both

Please explain, I don't understand how the idle will change?

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maybe if there is air leak idle will change if blocked. using a type of spray might block leak for short time . only a guess
my car is idling slightly rough but would be hard to tell change. going to search for leaks today pretty sure there's a small leak somewhere.

Every used UEC on your car?

it will change because the leak will be 'sealed'

dont use soapy water - stupid idea.

dont use soapy water - stupid idea.[/QUOTE]

Providing your not looking for a vacuum leak, soapy water/spray and wipe etc is the best way. The product we use at work to find leaks is leak check, effectively a soapy water.

Where it bubbles is your leak. Start at the joins. At worst you'll give the engine bay a bit of a clean.