Re: What could it be?
My guess on a valve stem in the trunk would be that at some point in the cars past a previous owner installed air shocks and that valve stem was how he set the air shock pressure. If it no longer has air shocks the valve stem was just left in place when the air shocks were eventually removed.
Just a guess...
69 Camaro Z/28 RS, original Azure Turquoise, M21 & 3.73 12-bolt posi. NOM 406ci, AFR 210 heads, Straub hyd. roller cam & Dynatech 1-3/4" > 1-7/8" headers, QuickFuel 750 Annular. Photos at:
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