With Omni paint, you should be able to install PPG over it ( Omni is the less expensive brand of PPG ). What I have used is PPG's DP-90 sealer/primer. What I would do is paint the hood your base color, clear it, let the clear dry, than mask off for the hood black out, scuff it up with a Scotch-brite pad (gray), wipe it down good, and spray the DP-90 over it. I usally put 2 wet coats on and then go back on the final coat and dry spray it, that will give you the mate effect you are looking for. DON'T clear coat over this, that way it will look like it did from the factory.
If you have any questions on this, e-mail me at: [email protected]
Sorry no real good answer. Owners for a while have been using various paints to acchievethe original finish but unfortunately the correct mixtures are not longer availbale. The original formula applied as a very dark purple and built up to the slightly textured matte black.
So owners have settled on using the early 80's formula from the GT Mustangs of that period