I went to an SAE Motorsports Conference in Dearborn in 1998. I met Bob Mullen there and he told me he made a set of D9 Hemi heads, but Sox & Martin weren't interested. He said they were just waiting for the weight breaks to change. I've never heard anything about D9 Hemi heads anywhere.

I have that old A&W 340 manual from when I was in high school. I converted the 3"H2O numbers to the 28"H2O numbers and got within 1 cfm of the bare 915 heads I had flowed locally.