What rpm stall converter should use?

You can get all of your cams information in the car with a dial indicator, a pencil, a tdc stop for the sparkplug hole and a stagger tape or 1/4" wide tape measure. It takes some time but if you take careful measurements you can be pretty accurate. You can measure lift, duration @ .006 and.050, lobe separation and intake centerline. You will need to remove the spark plugs, rockers from #1 cylinder and the fan usually gets in the way. Also and understanding of the valve events is important so have someone who knows help you or study up.