Drop Spring or Coil Overs?

[tonyvol]

Hey guys, I wanted to get your take on which is a better set up. I'm looking to drop the front of my 67 camaro around 2 inches and wanted to see if going with a Hotchkis 2 in. drop spring with adjustable shocks or would a coil over set up be better? I was looking at the Pro Touring package Speed Tech sells for coil overs. I don't really want to modify my subframe any.

http://www.speedtechperformance.com/...rod/prd131.htm

Thanks,
Tony