I know there are some folks who have reported, likely correctly, that the hood blackout templates from Graphic Express are not factory correct. They may be correct, but I used their template anyway. I also used a template for our "351 RAM AIR" call-out characters so the body color would peer through the blackout, as opposed to using a decal for the call-outs. That said, I think our blackout and Call-Outs look, and I like your blackout as well. I can't tell for sure, but it looks like you used a black satin, as opposed to a flat black with a rough surface texture. That is what we did, PPG Hot Rod Black satin shot over the PPG Sunset Orange body color.
Seems to me pretty much color would look good with these Big Nose Mustangs, with or without the blackout schema. But, the blackout schema sure does help give them a wicked look, in a good way.
Our 1973 Mach 1 on its last da of its deep restoration project: