I was looking at droping my valver 55mm on these springs
http://www.k-tecracing.com/show_product.asp?id=1438
and obviously going as low as poss on the torsion bar at the back - as far as the front, where will it rub if anywhere if I drop it this much? Ive looked and it should clear the arch, its runnin on williams alloys with 195/50/15 rubber??

while im at it, how much lower will the back "roughly" go down?