I've just spent a few hours going through a number of "Safety Red Dye" posts and it appears that in 1967 the number of places red dye was used is extremely limited.
I see the front turn signal 'wire tie' has a red dyed look.
A replacement long brake line from rear d/b pressure regulator to heater area -- early 67 over the column style brake routing -- has red dye on the front tube nut.
And that's all I've found. Is the brake line correct? Any other uses of red dye on 67 cars?