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Message: <blockquote data-quote="dan filipi" data-source="post: 95503" data-attributes="member: 54">Joe, I think you read something into what I said and need to reread my post.What I am saying is that ignition advance on stock is governed by throttle position and vacuum present to pull in the advance. Not the case with the C5. It's totally RPM dependent.Is this better for acceleration or fuel economy? It sure seems so as far as acceleration goes.Like I said in that post, it does accelerate better now than it did before.Stock full advance is at about 3500 rpm. That is what my c5 is set at.<img src="https://www.classicgoldwings.com/forum/gallery/image.php?album_id=1997&image_id=20832" alt="" class="fr-fic fr-dii fr-draggable " style="" />When I'm shifting up, this full advance can be felt. I'm just not sure what rpm I'm at which is why I'm looking for a tachometer because I don't have the tach drive on the right head and I'm concidering going back to 1100 cams from these 1200 for a true comparison.</blockquote>