It has been a little while since anyone said anything about p&p heads for our S197s and I was just wondering if anyone knew what type of power you would gain from such a modification. The only ones I have found were the ones made by BBR and they are going for 1600 or something like that, but I wanted to see what kind of power I can expect for the money. I am trying to build my engine up since I want to stay n/a for a while and I have heard that this is a good mod to do. Just in case no one knows how the 3v engine reacts to this then I was wondering what kind of increases 4v and 2v engines are seeing just so I can get an idea. Thank you.