WHEN I had swaybars (stock front, HO rear) & stock springs, I had them at 5 all around. Seems to be about stock DeCarbons. When I removed all the swaybars (stock springs), I put them up to 7 and its a lil stiffer but I don't get as much body roll staying with 5. It's a good comprise. For drag racing, 0 for the front and about 9 for the rear. Before I moved, I was playing with settings at the local track. 9 clicks with 15# in the pass side airbag with IC brackets has netted me 1.7x 60 foots on a 'ok' prepped track. Previous BEST was 1.87 with an average of low 1.9's.