Is it ok to use a syn blend right after cam break in?

Ive got Brad Penn, but dont know if the rings will like a blend.



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.