removing cam covers - need to drain oil?

[lagoon]

I will be pulling the cam covers to update tensioners - do I need to drain the sump or just raise the rear to move the oil forward? 81'SC

[Early_S_Man]

When you raise the rear enough to get the muffler off ... there won't be much oil loss.

[Kurt B]

Have a bucket handy anyway. It's a real mess on the right side when you pop them off. I jacked mine up to do tensioner work (and I already have the oil lines and pressure fed tensioners, just replaced them), and I lost around a quart of oil in the effort.
Nice thing about these cars though. You lose a quart of oil, and it's no biggie. Drive down and put another quart in