Yep thats it . I remember that the ....907 version was 8.5 cr and the ....908 was 9.5 cr both with that cam. I do still have a new Mp P# 4452761 267/272 .450/.455 i could use in it , or a slightly used P# 4452782 268/276 .429/.444 with maybe some 1.6 rockers (that i dont have $$$$).