Maybe you know of some good high intensity bicep workouts with a lesser weight to stimulate growth?
I can make a few suggestions perhaps.
Wrist curls to hit forearms directly, high reps 5-6 sets. And believe it or not i have noticed a good difference in forearms from reverse bench press, however you may want to make sure you have some time under your belt before getting into that, just my opinion. Start light to medium weight with those.
As far as stimulating bicep growth, i will again say high reps 12-15 ( i am all about volume ) WITH GOOD FORM, drop the weight so you can control it instead of slinging it around and swaying. There are tons of bicep workouts you can choose from, in fact there is a thread here under "Training" section called "post up your arm routine" lots of good stuff in there, i think i threw a lil something in there.
Hit them twice a week, high rep day, and a heavy day to get you going.
Check out Ben Pakulski bicep training on Youtube, i've been watching his stuff lately and really liking it.
Can you share a lil what your training looks like right now for biceps/forearm work? As well as your nutrition?