smaller cam then i built or help in bulids were we used abit less cam @050.save them big number cams for very hi rpm engine or big cid . some thing very lite that cam may work better. some were in the 268 to 273 on it may be on a 108 with a 400 trans the bbc like to be short shifted .not so much the cid the bigger bore make the heads work better. try to like the rpm down abit .