Best Subframe for Cruising

[armourmark]

I am looking for opinions on the best front suspension setup (subframes?) for a lowered 67 camaro that will basically be street driven and an occasional drag strip run (rarely). Right now I have a stock sub with Hotchkiss lowering springs, stock spindles, standard Koni shocks, tubular upper arms, stock lower arms both with poly bushings, hellwig sway bar and the car rides like ****. It can take a corner like a madman, but it's so stiff I feel every damn bump in the road and I have some rub on my outside tires. I just want something that rides like a newer car and can handle some spirited street driving. I was originally going to autocross it, but the plan has changed into a regular cruiser. Any help will be greatly appreciated.