I know I might get a few negative responces with this but oh well, I just hope its from people that have experienced them and not just heard from others .
I have Aldan American Eagle all aluminum, double adjustable rebound and compression 754's and they work great. I have a Lemans front fascia/splitter combo that is 3.5 inches off the ground and I have dipped the car through some uneven pavement many a time and not hit or scraped once. Remarkable considering in my stock car I would have scraped the front lip under those conditions. Here is some info on them if your interested. They are 495 dollars for a pair with springs and are rebuildable as well, now I have to say I have ridden in cars with Eibachs and KW's and did not find them to my liking as they swayed more around tight corners and felt more like a boat ride then a race application I am sure people have said that about these shocks as well but, in the end its personal preference and marketing. Here is some info from their website, ............................
Aldan Eagle shocks are available in either 12 position rebound adjustable, 6 position compression adjustable, or double adjustable rebound and compression.
The Aldan Shock Absorber Company has been in the shock absorber business for almost three decades and is the preferred shock for the street rodder who is interested in only the finest shock for his or her street rod. The Aldan Eagle Shock Absorber is machined from aerospace grade 6061—T6 billet aluminum to aerospace tolerances assuring the purchaser a shock which provides superior heat dissipation, outstanding performance, maximum strength, and a show quality finish. For the street rodder who wants a polished finish, the shock can be ordered polished. The shock’s features include: numbered damping adjustments, an internally-vented oil chamber which protects the top seal from excessive pressure and stops leakage, nitrogen charged for fade free damping, and hydraulic anti-topping. Features also include three stage valve control which automatically accommodates variations in sudden shock impulses for consistent damping under all speed and road conditions. The bottom threaded spring retainer allows for adjustments in spring tension and ride height. The shock uses a 9/16 inch. chrome hardened piston rod and cnc machined piston in an inner steel cylinder which assures rugged and dependable performance. The shocks come fully assembled with the springs and ready to install.
Just to add, the shocks are probably around 10-15 years old and still in perfect condition.