I tried a set of simple spring compressing clamps, one on each side to lower the car 1". It worked pretty good. Very inexpensive too. I think I'm going to get another set so I can use the two clamps to effectively change the spring rate by how they're spaced across from each other on the same coil. Using two clamps will also divide the work each has to do to lower the car the target one inch.
Don, I've used those clamps in the past. I found that they seem to move around and change position on the spring upon compression.
Have you not considered using coil over springs ? They're cheap and come in various spring rates. They fit right in with their 2.5" inside diameter. I put in QA1's 110-14. Dropped my car 1 1/2 " The 130-14's dropped me down 3/4". Yet to be tested at the track though. The QA1's give you a lot more room back there for tailpipes, if that' important at all.
These drops are compared to the stock style cargo springs that I had in before.
Dusty Bradford runs QA1's 130-14's last time I talked to him. He runs in the
7's as you know, with stock style suspension, so they obviously work.
Alternatively, you could go to coil-over shocks which give unlimited ride height adjustment.
Having said all this, if you are getting 1.28 60 fts. with stock style suspension, we should be paying attention to what you are doing, not the other way around.
but I really appreciate your constant search for improvement. Many of us have learned a lot from your willingness to share.
George
