Goose, It also depends on the size Tire you are running. I have the Full Hotchkis setup on my 67 400. The front I habve BIG BLOCK drop springs as that's what they recommend. Along with the New Fox Racing Shocks that come with the new package instead of Bilstien.
My Tire are 225/35/r17. Front and 245/45 rear
On Hard dips It will scrape a bit on the front and will rub on full right hand lock. I think the problem is you got the Small black springs. I have an alum radiator and battery still in front.