Date: 12/31/1969 Views: 4999
Date: 10/30/2007 Views: 4446
Date: 10/25/2009 Views: 3673
Date: 08/23/2023 Views: 94073
Aluminum flanges were added to the plenums so that the plenums would not need to be fastened directly to the hot heads. Later in the build, the pop rivets were replaced with machine screws so that the front 2/3 of the plenum could be easily removed