Counting the posts of a custom WordPress loop (WP_Query)?

I tried tplacing this:

    <?php $count = count($custom_posts); ?>
    <h2><?php echo $count; ?></h2>

at the end of the loop:

      <?php if ( bbp_get_forum_title() == 'Test Forum 1' ) : ?>
            <?php $custom_posts = new WP_Query(); ?>
            <?php $custom_posts->query('post_type=blocks&location=Business and Finance&order=DESC'); ?>
            <?php while ($custom_posts->have_posts()) : $custom_posts->the_post(); ?>
                <div class="ad">
                    <?php the_content(); ?>
                </div>
                <?php $count = count($custom_posts); ?>
                <h2><?php echo $count; ?></h2>
            <?php endwhile; ?>
      <?php endif; ?>

But instead of the total of posts, I getting this output:

Translation 1

Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam
nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat
volutpat. Ut wisi enim 1

Any suggestions to fix this?