If he doesn't answer your PM then email him from his profile page.
Sometime he's quite busy working on restorations of Pontiacs for his family, but he'll respond.
Dick is the only guy I'll use, his work is top-shelf and reasonably priced in my opinion.
The set of '64 421 carbs he did for me ran flawlessly right out of the box, and that was after nearly 5 years of sitting in the box waiting for me to get the 421 together.
Here's a close-up shot of the set of Tri-Power carbs that Dick replated and restored for me. Dick temporarily mounted them on a '65 intake to adjust the linkage he supplied before sending the completed carbs to me.