Check out Vintage wheel works V48. They have them in a 16x8 with a 4.5 back spacing. They are what I am going to put on my mustang. If you call them they are very friendly and helpful.
1965 Mustang coupe, Poppy red with black interior, I6, DUI, CI alum head ported, 264/264 110 Clay Smith cam, 1.65 roller rockers, Autolite 2100 300CFM, Lokar pedals and throttle calbe, Spectre air intake. Shelby mod to front suspension, CI headers stainless with Jet-Hot ceramic coating, CI Stainless 2" impostor dual exhaust, 17x8 Coys C-67 wheels,