That broken spring would bother me, esp if you have a high lift cam installed... Are you close to 'spring bind'??
PS. The car looks great. I like the gray spokes...
No it's not close to coil bind. This engine still has the original L78 cam & springs.
I know the topic of the tail paint has been discussed here before and I believe the consensus was the black paint used for the tail was the same for the lower rockers (where used) and the firewall. It makes sense because I doubt GM would have a special gloss just for the tail blackout. If you were to take a guess (unless you know for sure) at what gloss level would you say yours is?
I can't say with 100% but I would guess 70-80% gloss. You have to realize that in my case the tail panel hasn't any type of protectant applied in over 20 years. Just a wash every now & then.