Got some time on the Blazer last night. I was able to get the front springs swapped out with the 1" drop springs. So far it looks like it raised the truck 1.25". I've now got 4.25" of clearance at the LCA. From my research that should be just fine. I may put new shocks on it to control the movement more if I still have an issue. But I don't foresee one.
Hoping to run over and grab my new leaf springs on Wednesday. Then I can get the back lifted up and 1" or maybe 2". I'll just have to see what looks best.
My new measurement at the front fender is 26" from there to the ground.