Unknown Cam

I myself would put base a new cam that suited my plans.

Put your thinking cap on! Here we go, basic instructions.

To check the cam specs in engine you'll need a degree wheel and at least one each of the following parts. Solid tappet, an adjustable rocker arm of known good quality and ratio of 1.5 and a pushrod sized to work with the previously mentioned parts. A dial indicator with a way to mount it to the engine so it can read the lift ethier at the cam lobe or on the valve retainer to measure the lift.
A top dead center tool. Even a simple screw driver cam help you find this.
A buddy for extra hands is also a useful thing.

Once you find the intake lobes base circle, zero out the dial indicator and start rotating.
Mark down the numbers of the cams lift and when the cam opens and closes the valves.