JQuery :: Handling Huge Sets Of Elements?

I developed a plugin which loads some content via AJAX. Every time the content is loaded I need to bind to certain elements ( let's say the elements with 'bar' as classname ) the mouseover and mouseout elements. I achieved it by using the ' live() ' instruction.Now my problem comes when I need to scan every element which has 'bar' as classname and do some calulcations on it (they are over 600). I tried to do like this

$container.find('.bar').live('customevent', function()
{
// do some stuff
});

then, once the contents is loaded

...
$container.find('.bar').trigger('customevent');

but this will cause the browser to carsh ( I think because jQuery is scanning over than 600 elements)