On my engine, I used POR 20 High Heat Aluminum paint made by POR 15. Comes in a small can and applied with a 1 or 2 inch paint brush.
You don't want to get that stuff on your hands as it is practically impossible to clean off. But it gave me a longer lasting finish than any of the
spray can products I had previously used.
For the red on the hubcaps, triangular piece on front of the hood, between letters of the Special Deluxe script on the cowl and on the stop light
bezel, I've used two different things. One is the small glass container of Testor's red model paint and model brush. The other is the Testor's
paint pen with a felt tip. You just need patience and a rag, along with some paint thinner to clean off the edge of the letter when you run over
just a bit. That paint won't last forever, but it holds up pretty well.