Timing chain damper on 100

["Bluechipracing" <bluechipracing@snet.net>]

When I reassemble my BN2 engine should I leave out the timing chain damper?.
Unlike the 6 cyl, its just a rubber "O ring" that fits around the cam gear
between the two cam sprockets.  I had heard that they disentegrate over time
and end up contaminating the lube system, so I have purposely left it out of
the race engine, but on this road engine, I would like it to run smooth and
quiet.

100 listers, What is your experience / opinion?

Jim Smith