ATTENTION suspension gurus

[akrapovic]

Hey all, I'm trying to raise the front end of my car 3-4 in. I have afco coilovers in my 69 camaro. Currently I have 8" 350lb coilover springs (way too slammed, tires touching top of wheel well.

What would be the best way (ie longer spring/higher spring rate) to raise the car. The shocks are optimal with 8" springs. How much higher of a spring rate do I need to go with? Car is mostly street some 1/4 mile.