KB Pistons

im loking at some kb191s or kb107s for my 360. im wanting zero deck, wut do i tell my machinest? how much is removed to get zero deck.i will be using some 68 x heads about 65cc.and keeping the 4" bore im guna try some 73 318 rods.i have a crower 282,292/480,503 cam,any ideas or help?