Had the "Nortan 850" dyno'd last week with very interesting results. The engine is standard apart from a Fullauto Technologies head, a PW3 cam and a VM34 Mikuni. The rapid dip in the torque curve is interesting. The motor is very strong in the low end and mid range as you would imagine with 50 ft/lb of torque at just over 3000rpm. In fact it is a delightful engine to use. You tend to maintain very good momentum using quite moderate revs, which is what I like. The operator should have known how to spell as he worked for Mortlocks, the West Australian Norton distributors pre delivering Nortons in the 70's. Tell me what you think.