You don't need to pull the distributor to check oil flow to the rockers. If your starter & battery are good you can pull the spark plugs & crank the engine over with the rocker line disconnected. You'll get oil to the top of the line within 10 seconds at normal cranking speed. If you oil everything up good during reassembly (after cleaning your valve train) you won't hurt anything by doing the test.

Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.