I bet its a cold setting... thats about right for a aluminum head big block with a cast iron block...
it would grow .006-.008 so you would be at the .018-.020 as mentioned.

[color:"red"]65 Hemi Belvedere coming soon [/color]
[color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]