I am looking to replace the stock rear leaf springs on my 71 challenger. My car was originally a plain jane 318 car with 8 3/4 rear end. I have swapped to a 340/727 combo and upgraded to 3.55 limited slip rear. My car sits low in the rear, about an inch of the rear tires (60 series, 15" polyglas) is covered on top by the quarter panels. I had installed air shocks as a quick fix to lift the rear end. When over filled I can raise the rear of the car so I can see about an inch over the tire showing and something close to that would be my final goal for ride height. I now want to do it right so what leaf springs should I get and where is the best place to purchase?? also looking to replace the shocks all the way around. Looking for the best I can get.. Suggestions please....thanks for any help