Re: Good deals or not
It's the CNS carb. I haven't any experience with them, but from what I hear, they're no better than stock. Some have said they've had a worse time trying to tune them than the stock NT carb.
In reality, almost any carb is probably not worth the money and time. They run pretty damn well on the NT carb as it is. Even with other extensive modifications, the NT is plenty sufficient. Save the money and get a good head (CR machine) and a nice expansion chamber exhaust if you want more power. Then re-jet the carb. And don't forget, do this after getting the engine broken in (3-4 tanks of fuel). And, while there's a big debate on how much oil for the mix, I recommend 24:1 for break in and 36 or 40:1 for after break in.
Never stop wrenching