It would help a little more to hear some stats. Past history of juice, training history, age, etc. But,
I'll go out on a limb and say Equipoise. If you're gonna use it alone, from what I've heard you may want to try 600/wk.
Anavar's another good choice for permanent gains but using it alone can get $$$$. I've heard of guys using around 50mg/DAY.