Mystery plastic piece from S52 top end?

[Nova Eona]

Hi gang, I'm in the middle of rebuilding an S52 engine which I purchased disassembled. While putting the top end back together, I cam across this plastic cap thing in the same baggie as the upper/vanos chain guide. I'm stumped as to where, if anywhere, this is meant to go, any suggestions?

[Nova Eona]

Well I guess it can't be that important then! lol.

[Northern]

I really have no idea where that could be from

[Nova Eona]

Well this post now has 72 views and nobody alarmed, so I'm going to count it as a 'bonus part'. I'll let y'all know if anything exciting happens when I go to fire it up.

[twright]

It looks like the part of the Cruise Control linkage that holds the throttle cable to the throttle linkage on the butterfly. (But, I didn't post this before, because I'm not sure.)

[ZekeTheSneak]

Is it rubber? Looks like a vacuum cap. Might be from the stock s52 intake manifold. That distribution plate where the ccv connects to, has a vacuum cap from the factory.