My friend had them.
You have to totally clean of content them to make them work and then they are
loud.
His W2 -98 w 39mm FCRs & pods, polished heads w DP cams & HC made 88 RWP, mine made 82 w V2 & 41mm, SS cams & HC on
same dyno.
Still find it hard to believe that it made those numbers w those small valve heads, although I sen the chart dozens of times.
Some clearing issues, yes.