After Priming

I stripped the paint and cleaned it and then primmed it. How long does it have to site before i get to start sanding it and then paint the basecoat on it. And after im finished with it should i sand it a little. Ive heard people doing so and then the color turns flat then they polish it. What kind of polish should i use to ive it back its shine.

I'd suggest reading through the Car Modeling FAQ's and tutorials in the Car Modeling forum. It would give you a lot more information than we can type in a single post.