Your Camaro is outstanding looking.The details really flow.
So much so that I have to ask why you used a 1968 #299 Diverter/Muffler/Clip,
and not the correct one piece 1969 #297 Diverter Valve?
I am from the understanding that the #746C Purple PCV Valve was used on 1968-69 302 & 427 solid lifter applications only?
That really is a Beautiful job!