273 commando cylinder head bolt torque specs ? same as 340 ?

273 calls for 85 pnds torque, i found if you torque above that, it distorts the block deck. my 340 i use 80 # torque , also i use moly lube on bolts, also i torque in steps, 40, 50 50 70, 80. i ran into this issue long time ago.. i have customer, runs a 340 @ 10.65 cr, i torque heads at 85, with moly lube, never has had a gasket problem, also i use felpro 1008 gasket. just food for thought.