I'm not sure on the weight... it's a bit heavy since it's stainless...
I will say this... I ran this pump last summer with my DASA 850... Details:
Early last summer I ran my Foot Rocket with the Dasa 850, 46mm OEM carbs, MSD enhancer and a 144 Skat-Trak Mag pump. Loved it! Swapped the 144...