My suggestion would be to take several classes in genetics before you begin trying to breed. All reputable breeders breed their animals to better the breed (how many times can I say "breed" in one sentence?). If you have no understanding of genetics, you will not be able to make the breed better and in fact have a good chance of hurting the kittens who come out of your breeding program.
Learn all you can about your chosen breed. Learn all you can about genetics. Learn all you can about shelters and the animals that are kept there because they lack a good home. And after all that, if you still want to breed cats, I wish you the best of luck.
Learn all you can about your chosen breed. Learn all you can about genetics. Learn all you can about shelters and the animals that are kept there because they lack a good home. And after all that, if you still want to breed cats, I wish you the best of luck.