2" rear lift springs

I just put a new set of leafs on my '74 Duster from General Spring. They were supposed to be standard height, but they raised the back of the car at least 1 1/2" vs the old, flat pair I replaced. Lots of room for a 275/60 on an 8" rim now. I can measure it when I get back home in a couple days, if that would help.
That would help, I'm going to lose a little height going with an axle tube that is almost an inch bigger so im going to lose 1/2" in rear height as it is, I want to fo for that 70s drag car look. The springs from southwest are $230.00 shipped for a set that's the best price I've seen.