Yeah, take fina 75mg-150mg/eod and 250mg test per week. Add in some type of anabolic, like eq, or not. It won't matter. The fina will add some serious strength. Work your arms one time per week, and concentrate on the heavy lifts. Believe me, if you can only do 5 chins with no added weight, and you start doing them with 20 pounds, your arms WILL get bigger and stronger.
That should do it.