The precise filtration will vary somewhat depending on the enlarger's light source. See test sample of a B&W neg done at 75Y, 75M. Raising the filters a bit more can yield more of a brown without the reddish overtones. Once you establish the correct exposure, you need to experiment with the filtration until you get something you like. A wide variety of tones is possible and you may find that what you like can vary with the specific image. Experiment a lot, keep good notes and let us see some results. O yeah, and have fun!
Bob