combustion chamber question

so lately I have been gleaning lots of info small block mopar strokers I am a die hard 340 guy and love that little over achiever, but times change and it time to go through mine one more time. my question is I now run close chamber aluminum heads so if I go with some dish or step piston on a 4 inch stroker don't you lose the quench effect and if so will flat tops work with pump fuel. my cam 245@50 single pattern cam. my chambers are 65cc. my math puts the compression around 11.5 to one