The oil light keeps flashing and beeping if i take the revs over 2k revs.

Ive dropped the sump, and changed the oil pick up pipe.

Engine sounds fine, no engine light on.

Other than the oil pressure switch, can it be anything else?

Oil pump?

Ive also checked the oil pump mate, the chain isnt loose or slack.

Have you looked at the switch yet? Leaking oil usually indicates a failed switch.

Having looked at the oil switch, and it does have an oil leak.

Will replace and report back. Thanks for the help