[blykins]

I'm kinda biased since I sell Quick Fuel stuff, but they are all that I use on customer engines.

I would say that both carbs are good carbs and I consider Quick Fuel to be about the best you can buy.

On a side note, I've had nothing but trouble out of Demon carbs....every one I've ever used required repairs before I could send them out.

I would recommend the Q-850 for your application.