906 head capabilities?

Unfortunately I have no close ups on anything as it’s not at my house. Here’s what I have on had. All I know is that they are ProComp heads, ~84cc. We had measured the valves at one point but I can’t remember the size off the top of my head. COMP 924 springs (Valve Springs, Dual, 1.509 in. Outside Diameter, 347 lbs./in. Rate, 1.175 in. Coil Bind Height), Harland Sharp roller rockers .650 offset, 1.5 ratio and COMP Mag push rods 8.710”

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Yes those comp 924 springs are for a low lift hydraulic flat tappet cam. Never going to work with the cam you have. Better call the cam company and ask but your spring pressures need to be way higher than that