well yes but more will not hurt 005x bore size is fine on a street rod yes i go by the chart and pat mccarthy chart as well bigger gap never hurts .but less will...watch the problems you will have. on bore its Pie or very close but fast way is to think 001 more wall clearance = 003 ring end gap most guys will not put the pistons in at low end spec.. so adding more piston to wall you end up with more gap so file rings many times are a wast of money if you still need more end gap then you can file the drop in rings