Early to late differences in 403 Bell Housings?

[NorCam]

While on the topic of bell housings, a couple of questions those in the know might chime in with. When fogging the edges of the bell GM orange:

• Do the bolts get painted as well, or did they stay natural?
• Is it only the mid and top section that got fogged? From the bolts up?
• Lower inspection cover and bolts black or orange?

I have seen some people do the bell all around the flange including the lower section, but I cannot see that to be correct on the bottom side? I could see it being fogged just where it meets up with the block and upwards but thought I better ask to be sure.

Thanks in advance for any factory paint advice on the bell.