Checking the height of the troughs and the alignment of the spray nozzles was supposed to be done anytime a pan was removed. GM dealer shops had checking fixtures for both procedures, but a simple test using a piece of angle iron and a combination square will accomplish the same thing. Alignment of the oil spray can be checked with a garden hose plumbed to the oil pan and an "X" scribed on the side of the pan directly opposite each spray nozzle.

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!