318 stock exhaust manifold questions

Two actually:
1. The heat riser has a coiled spring attached to the weight. On my manifold there is what appears to be a second spring end which is not attached to anything. Where does it go? See pic.
2. On the opposite side of the weight there are two "posts". One is the rod that the butterfly is attached to, the other is a post (or in my case, what is left of a post. Both of these have grooves in the end for what? Maybe a spring? See pic.
Thanks for the info.
C

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