What Gen III Hemi dipstick tube are you running with a swap pan and headers??

Johnny Mac said
It goes in the block. Your fill level might not be perfect on the stick if not using their pan is all.

Well that brings up another question then.

I bought the Holley mid-sump oil pan kit (which doesn't have a hole for the dipstick), and my plan is to use Holley #302-74 tube + dipstick in the block hole.

How do I know if the oil level is correct or not?