A-body Mopar Performance XHD Springs

I put a new set of MP XHD leafs springs from Mancini's on my 70 Dart to replace the stock springs. Now the car sits very high in the rear to the point I think it looks ridiculous. The wheelwell lip is about in line with the top of the tire (275-60-15). I have heard that these springs have a tendency to lose some of their arch fairly quickly. Does anyone know if this is true? Otherwise, I am thinking of maybe having them de-arched some if it's not too expensive. I would have just left the stock springs on it if I had known the car was going to sit up so high with the new springs.

they will come down some..but not a whole lot..or youcould sell them(to me) dearching can be pricey...good luck

I got the a body springs mancini sells for about $220 per set for my 70 dart and it sits just right, maybe one inch over stock.