Do you have a small or big-block? The big-block has extra front-end weight, as you know. So, with a lowered body, you could bottom out the shocks under hard cornering AND more likely during hard deceleration (I know first-hand on that!) Talk with QA1 and they should be able to recommend the correct shocks. (I highly suggest for you to consider stiffer torsion bars to help prevent the front from diving and bottoming the shocks... FirmFeel's 1.12 would be very helpful and still not very stiff for the street.)