I have launched a new website 1 week ago and I actually didn't advertise it yet only couple of words in one forum and I receive now around 160 unique and over 120 page view per visit .

I know that I can expand it easily and gain up to 1000 unique a day .

my question is with this ratio visit/pageview is google adsense a good choice from your experience and if so how much revenue is good and how much is bad . in short how much i should expect with this performance ( my niche is business and stocks and forex )

I think stocks and forex have pretty good click through rates. At 160 unique visitors, using adsense would be a good idea. For quality traffic you should be able to make reasonable revenue from adsense. As the traffic increases you can try affiliate links and other advertising methods charging for spots on your website.

Is it a big site? Have you checked you stats, just in case its mostly bots visiting your site to index it? Just a thought.