Building out a 273 recommendations

Looking at different cams now

Between 280 duration with a 474/474 lift with operating rpm 2000 to 6000
or a softer 260 duration with 430/450 lift with operating rpm 1200 to 5200

The power bands given by cam company's are more than likely based on 340/360 so move those power bands up a bout 1000 rpms so 3000-7000 and 2200-6200

First figure how much rear gear your willing to live with before deciding on a cam, For a performance 273 the lowest I'd go is 3.91.