oil light

i recently changed my oil and filter and ever since the oil light on the dash flickers on and off, so i changed the oil pressure switch thinking that might be the problem but im still getting the same results???????????

i took the rocker cover off and started it to see if oil was coming to the top of the engine witch it was............

anybody have any idears cheers

Crap filter?
Wrong filter?

What grade of oil did you use?

Coincidence maybe, oil pressure switch cable shorting somewhere, pull it off the switch and see if it still does it?