I have built a site over last 7 years and it is pretty big with around 40,000 original content pages.

All pages have been done manually over years and use same include file for head, navigation bar and footer. Now i notice that google treat all pages same and my forums rank much better on search engine than my site though site has much better content.

How to handle this include file problem??

your header might cause duplicate content on each of your page.

can you post your website url ? so that i look over it

thanks