My Client was requesting that he make changes or addition to his website is that possible?
Blocs is first and foremost not a content management system. However, you can make some sections/containers editable for your client by using the Brics pulse or october.
Blocs offers integration with various Content Management Systems:
Integrating one of these, will allow your client to make various edits to determined limited areas across the site once the site is launched.
I had a look at October recently with Blocs and concluded that the editing would probably scare most clients, because it was surrounded by code. For clients I think it needs to be more like Wordpress where you can type normally in clearly designated areas and have it appear as expected after publishing.