SEO script question
 

this
<h2 class="post-title"><a href="<?php bloginfo('url'); ?>"><?php bloginfo('name'); ?></a> <?php wp_title(); ?></h2>

is anoying and looks cluttered.
Is it possible to hide it with some code or can it be deleted without adverse affect on seo of main page?

Hi,

I advise you to change it by a logo image. It will be nicer and will have no impact on your SEO.

The most important thing is to have "h1" for your post titles, not for your site name.

Anything is possible with Wordpress code. I would make a child theme for this, this is what they always recommend.