I went through this with my dealer earlier this year. this video was probably made with my head because they had so many issues putting cams in that they ended up sending heads to T-Man to verify nothing was wrong with them.
hope this helps
<div id="fb-root"></div><script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3"; fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk'));</script><div class="fb-video" data-allowfullscreen="1" data-href="/100157792180/videos/vb.100157792180/10152823764087181/?type=3"><div class="fb-xfbml-parse-ignore"><blockquote cite="
"><a href="
">[/url]<p>Check out this short video on the valve spring travel for a stock CVO 110" and CVO Watercooled head.</p>Posted by
T-MAN PERFORMANCE on Thursday, June 18, 2015</div></div>
clearly i don't know how to imbed video! lol but the video is from T-Man Performance on the amount of travel available with stock valve springs. it's available on his fb page
https://www.facebook.com/100157792180/videos/vb.100157792180/10152823764087181/?type=2&theater