I just recently picked up new to me '85 Gamma. A friend of mine had it since the early 90's and I always bugged him to sell it to me, he finally gave in!
It sat for years and the foam on the filters is gone, I took it for a quick blast before I parked it while doing some long overdue service: new tires, gear oil, carb clean and synch, etc. As soon as a new Lace Gamma filters arrive I will be shedding it out on the roads, can't wait! Fell like a kid on Christmas and my mailman is Santa