Tire Rub?

[BluEyes]

Assuming that your tire package is one that should clear I would say stiffer springs are nessacary (what's the backspace on the rims? I'm sure some guys here can help with a 'velle)



When you lower a car you also really need to stiffen the suspension to avoid just what you have here. Basically the suspension is moving just as much as it used to, but the tire is now that much closer to begin with. Stifer springs mean less suspension deflection over bumps which works with the smaller clearance you have now.
Unless you've lightened the car considerably, I wouldn't worry about heading up to the mid 400# range for the front springs with good shocks. American cars from the '70's started out very undersprung. My Camaro is at 420# and the ride is better than my LeBaron. My next step is 600# springs up front to bring the Camaro up from a sedan ride to something more suited to a sportscar.