Self Etch Primer Questions

[muthstryker]

Hi guys getting ready to start a budget build on a car i just picked up and had a question. Im going to be (already started) sanding the car to bare metal. Now would it be ideal to put self etch primer over the bare metal? Would I beable to spray self etch primer over body filler or not? Should I look for something else?

I want a black primer but not to many choices thats why im asking about the self etch. Any suggestions would be great.