Yes, @Godwin knows his cruisers......and his reptiles! I once posted a pic of a rattler I came across at an old mine dump in SE Arizona and he was all over the correct identification. I forget what kind of rattler it was. It wasn't a western diamondback but it was almost a direct bolt in for one!!!But it's awesome that Godwin found a cross replacement for the 60s booster, using the 80s booster. Now we've got a replacement when ours die.
Thanks @Godwin !