De Arching SS Springs

^^^^ this is your first answer to try , check if the front hanger has been flipped to to put the bolt on the lower side of the hanger , if so flip them back to lower the ride height , second do not put 2800 lb springs on your 3400 lb car , the tard that did my resto did this and they went soft and sagged in no time ,springs are rated for vehicle weight for a reason , if flipping the hangers won't lower the ride height then get XHD springs in your vehicle weight rating with the stock arch and sell the SS springs , just remember to check and re-shim the thrust angle as well as the pinion angle after swapping .