Originally Posted By HemiRick
If you have to ding a tube for clearance Hotrod has done a dyno test that shows little to no power loss from the ding even if its fairly large.
This, just get the blue tipped wrench and make a couple of dings. On my Headman Elites only 1 tube needed it for the RPM heads, the #2 tube, near the #6 plug. HTH, Steve