OK I've finished them and bolted on- with .016" clearance, valve lift is now 0.365".
Bush bore offset is 1.1mm.
Not bad for a crappy old set of 850/998 pressed steel rockers- so old that the pillars were alloy. Can't remember when they dropped those and went to cast iron...
The alloy ones often used to collapse under head stud tension = another blown head gasket for you.........

<edit> syntax
<edit 2> rocker ratio is now 1.31:1

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thats sounds almost perfect Kev
except for the pillars

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Stop Licking the Dog...I Don't Care Who Started It

Of course I'm NOT using the old corroded alloy pillars Gaf, I have cast iron (so-called `steel') ones off an S set.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.