I would not worry about putting a SBC damper on a 5000-5200 rpm engine. It is not a bad idea to put the bolt in for the balancer though.

Upload the video to Youtube or to one of the many pic/ vid sites ( like imageshack). A newer digital camera can shoot nice videos.

Get that timing fixed with some newer V8 tuning parts and then see how it behaves. Tom

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
Information and parts www.12bolt.com