If you are at 9.5 or less, and are not trying for max performance, then run what ya got. If you are over 9.5 then use a thicker head gasket.

Back in the 90’s I put a MP 474/474 280 cam on a stock 73 RV 440 and it was a great improvement over stock. Damn thing probably didn’t have more than 8:1 CR. This cam was 1 step below the old 284 Hemi grind.