Hiw does the added weight of a Big Block affect ride height?

[Alford]

Title says it all. I have a 454, 700r4, 2.5" drop spindles, 3"' front drop springs, 185/70/15 front tires. My control arms drag on everything. No match for the bumps on the yellow lines. I can raise it another half inch by going to 215/75/15s but I'm thinking the big block is too much for the 3" drop coils. Other guys with 5.5" drops and small blocks seem to have I problems. Any thoughts? Anybody else out there with a bbc and a 5.5" drop?
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