about 160bhp mate in standard form. 200 is very easily gotten from them with a chip and slightly smaller pulley.

you could check out the corrado forum

http://www.the-corrado.net/forum/viewtopic.php?t=26485

the place to go although many nice ones turn up on pistonheads and ebay from time to time.

Make sure its got history of the charger being serviced, they are very expensive to replace and stay reliable if well looked after.

corrados come with a few problems that most enthusiasts have now sorted, to memory these were the spoiler not lifting (easyish to sort) door handles, can't remember what but again another easy fix, and the sunroof arms which can be replaced very easily. Worth noting as haggling points, there will be more details on them on the corrado forum.

Hope that helps,

Matt.