How to CLEAN N.O.S. Fan Shroud ?????

[CamarosRus]

Rat Pack and others, Last night,before I read your bronze wool post, I started working on ANOTHER less valuble good used small block 70 shroud. I took some well worn GRAY scotchbrite and the FRP(??) graphiti remover and this cleaned another masking tape area.....As this shroud had "heavier" scratches I then used 400,1000 & 1200 wet paper.....then some 3M rubbing compound and then some polishing glaze....anyway I have made the used small block one look much better, but a little hesitant to start in on the EXPENSIVE NOS Big Block 70 shroud....The rubbing compounds and polishes tend to smear and streak and its very difficult to get a NEW clean look ????? ........Thanks to all.....Chuck