How much drop does these springs give? Is there a big handling difference from stock springs? Any info where I can buy a set? (2nd hand)

Guys, as you all know I race in SCCA Solo II (AutoX). To be competitive (and keep up with Steve and Corey), I am going to be upgrading my car a bit. So I will have some spare parts which I do not have space to store. So, I will have some stuff for sale. I put it in the classified section, just look for the one with BEST OFFER in the price colum.<p>I will take any reasonable offer for these, and it would be even better if you could make it to where I will be having the work done to my car at the same time (Anaheim). That way both cars could be worked on at the same time (suspension and tires, then alignment). <p>Please let me know if interested ASAP, as I will be doing this shortly.<p>THANKS!<br>