Tim, I found a photo of your grandfather and his 1932 roadster in Don Montgomery's book "Authentic Hot Rods". The photo is on page 118. According to the caption below the photo Powell Dickerson's roadster was the "Stud Special", had Edelbrock manifold, Denver heads and was timed May 25 1947 at 118.26 mph. A rather interesting thing is that the photo was taken by Tom Sparks. I think you should plan another trip to see your uncle George again, and find out any information you can about Tom Sparks. If Tom Sparks is no longer with us, then are there sons, daughters or any family that pictures may have ended up with. These are the things that never get thrown out. Tom Sparks knew your Uncle George and obviously by the photo in Don Montgomery's book he knew your grandfather as well. Thanks for posting all your pictures and dialog. I really enjoy seeing all the dry lakes cars and reading all the stories that go with them.