Sep 12, 2006 #1 S slamming 6 Drag Master Joined Jul 21, 2003 Messages 439 I am using GN1 heads on my stage II motor but the valve guides are kind of long just woundering if i can trim them up to the roof of the ports. Attachments Gator nationals 122 Large Web view.jpg 59.1 KB · Views: 136 Gator nationals 124 Large Web view.jpg 81.5 KB · Views: 112
I am using GN1 heads on my stage II motor but the valve guides are kind of long just woundering if i can trim them up to the roof of the ports.