DDL9423 PPG for Hood scoop and Wing??

I have a can of DDL9423 low gloss Black. Is this the best match for my 72 Demon scoop and rear wing?? Does this paint need to have a clearcoat?? It is Duracryl Acrylic Laquer... I also have a can of organisol black,, but I would rather have no texture if that is what is correct?? How did you do yours??