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turn ignition on

put a switch (or a screwdriver with a rubber handle!) across the starter power / solenoid terminals (they are ~1" apart)

now it's running.

turn it off: turn ignition switch off

check for leaks around intake manifold: use a small pencil propane torch, turn it on, but not ignited and slowly move it around the manifold and listen to the engine. if it sucks it in you'll hear the engine speed change. (note: i have not done this, so dont come back to me if your car blows up :) )

check for leaks around exhaust manifold: feel for air with your hand (don't touch the manifold). you'll be able to hear it too

Carl to check for intake manifold leaks, forget about crawling under the car. Use Carburetor cleaner in an aerosol can and spray it where the manifold meets the head and the carburetor. If the engine chokes and loses RPM's you have a leak. Keep it away from the venturi area as the carb will suck in the cleaner and stumble giving you a flase reading... If you're looking for exhaust leaks then raise the car, start the engine and while it's relatively cold, feel around the various seams and where the exhaust tubes meet the heads. You'll usually feel air coming out those area's. If you "think" you have a leak then disconnect the alternator belt when you do this so air from the fan doesn't get confused with an exhaust leak. Don't run the engine for too long with the fan disconnected.
No I don't Larry. My preferance is a scudsy t-shirt and shot to hell Levis.

But i have a friend who once owned an Audi / Porsche dealership where ALL of his shop people wore white knee length coats embroidered with their name above the words "Tech Specialist" Two of the high salaried dudes (with faint theatrical accents) even wore ties!!

Hey, I was impressed.
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