Hello guys, I am looking to buy shocks for my 70 challenger rt….will be a 5.7 or 6.1 hemi build…I have qa1 k frames and control arms and I am undecided on the shocks…..I have heard great thinks about the bilsteins and was also looking at the qa1……..anybody had experience with both??? If I do go qa1 should I go single adjustment or double adjustable? There is quite a price difference…..thanks again guys…..and the car will be pro touring but probably never be raced on any track