New leafs too high, how much will they settle?

Well I put 3 or 4 bundles of shingles and 160 lbs of steel plates into the trunk. So I’d say that’s gotta be 300 or 350 lbs of weight. Car is still a bit higher then when I started. The front eye bolt is loose and the rear hanger moves freely, and I loosed the ubolts, so nothing is bound up. I bounced the rear a bit, but it’s definitely stiffer then the old slant six worn out springs. I’ll leave the weight and once the snow melts I’ll drive it around for a while and see how much these springs settle and go from there.