A a lonadier Well-Known Member Joined Feb 15, 2004 Messages 183 Feb 29, 2016 #1 What is a good head clearance for the v5 running 60% nitro
timothy johnson Well-Known Member Supporting Member Joined Jul 9, 2011 Messages 1,794 Feb 29, 2016 #2 Start at .008. Should be good with a CMB nitro pipe at 9- 9 1/4.