318>390 Stroker.......Your thoughts

74Scooter said

Getting from 9.9:1 to mid 10's should not be a stretch... deck the block... shave the heads or a thinner head gasket. Any of the 3 or a combination of them should get you there. I should add if you are stuck in the mud at 9.9:1 you'd likely not notice the difference and you won't have to worry about detonation with that CR.

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That SCR is based on the block being decked to 0.01. Felpro head gasket at 0.039 compressed. Heads are 63cc, though they will be cleaned up and shaved slightly for flat. I've ignored any variance on that.
The car that was running the rotating assembly I've bought was originally 390 built wrong, then ipgraded to a 396 (60 over 318). It did 500 miles before it blew a hole in the wall of cylinder 4. That why I declined the Icons at 11.5:1. I'd estimated that the cylinder pressure and thin walls didn't combine well.