you guys are doing it the hard way. all you have to do is take a little Benz propane torch and turn it on witout flame. start your motor and follow around the intake with the popane and your engine will run faster and smoother if you find a leak. if it has a miss due to a vacuum leak the miss will usually go away when the propane hits the port with the leak. WD-40 works for this to but it makes a slippery mess.