Front suspension height

Interesting, 72. I was debating lowering the nose myself as I'm sure I did back in the day but how do you get that clearance if you lower the nose? Doesn't that close the gap even more or is there something I'm not understanding? I don't think I'd want to drop it more than an inch though to compensate for the taller tire. I don't expect to drive it on any back roads per se, just want to do some cruising is all.

You are correct, lowering the nose reduces that clearance to the bump stop.

The change in clearance at the bump stop is between 50% and 60% of the travel at the wheel- if you lower the car 1", you lose about a 1/2" at the bump stop, little bit less.

A bunch of things go into how I got the clearance. First, I run 1.12" torsion bars which have a 300 lb/in rate. Compared to the stock 100 lb/in bars, my suspension uses about 1/3 the travel with the same force input from the road. I run QA1 tubular LCA's, the kind before they added a bump stop (I have on the frame). Because of their tubular construction, they have a shorter profile, which adds about 1" of suspension travel (at the wheel). I also run 3/8" polyurethane bump stops, which are a full 1" shorter than the factory LCA bump stops.

After all of that, my car is lowered almost 2", but retains the same suspension travel as factory. If you keep all the stock parts, you lose suspension travel as you lower the front of the car.