in 1983 i bought a set ready to run with the guide plates, pushrods, rockers, square corner rocker covers, valley pan and intake for $1800. got them from my freind Malcolm Durham.
in 1984 i opened Custom Automotive and had to sell the set. got $2500
fast forward: 2001 i find a set in michigan, heads, intake and valley. the guy has 2 sets of everything and tells me $12000 i reply, "i only need one set" his reply, "that is for 1 set"
GEEZ, how times have changed.
used to be a set of 690's was worth $200 ready to drive and BBC square port open chambers would bring $1000. now the iron BBC heads are only worth scrap except for the date# guys
sorry for babbling........i'm still in shock