Wondering you guys that use juice what you use for factors for ring gaps?

Im putting another motor together (4.375 bore) and looking for some advice on what ring gap factor to use.



72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.