head gasket thickness for desired compression ratio

[bad v-6]

Need to know what thickness of head gasket to get 9 to 1 compression...
109 Block is zero decked, 20 over diamond pistons(off shelf stock), champ alumn heads(46cc), eagle crank(stock replacement).
Thank you.... All replies appreciated.

 

[AltaGN]

single steel shim ~ .019

 

[TurboDave]

No way of knowing without knowing two more things, piston/deck clearance and piston dish cc's.