67 FB 351w, which coil springs to use?

I have a 67 fb that came with a 289 and now has a 351w in it. The front end needs new springs. I am getting ready to order new springs and am not sure whether to order for a 289 or 390, they list different springs. My guess is the 390 springs are stiffer. They do not list springs for a 351w for that year. I have 235/60/14 tires that are currrently rubbing. I want a smooth ride, nothing bouncy. Is the 351w heavier than the 289? Any suggestions? thx.. Mike

Thanks for the replies.. Does anyone know what the stock ride height should be? I measured 25.5" from the ground up to the center of the wheel well. Just curious what it should be... thx...