What leafs are you running on lowered A body's?

I'm at the point where I need to order my leaf springs. I am going for a pro touring look so I want the best leafs for a lowered stance. I have already started my mini tub and spring relocation using the US Car Tool kit. What are you guys using for leaf springs?
hey there,maybe you can help me out,,,I building a 65 dart,do you know whats the widest tire size tire I can put under it ,my rear centerlines are 10 wide 15'',,do you think Ill have to narrow my springs in? I appreciate any help !! thanks from N.B