K-950 springs bind at 1.150 so you can't run much more lift than what you have right now. You could probably run the 1.60 rockers but it is going to be close, especially on the exhaust. Maybe put a pair of the 1.60 rockers on and check them. With lash and rocker deflection you'll probably be okay but I don't think you can put a bigger lobe in there without changing springs.

I don't know what those lobes are that you have so I don't know if the K-950 will control the valve train at 7000 rpm with the 1.60 rockers. If you aren't having any problems now then maybe they can handle the extra beating that the 1.60 rockers will dish out but you'll want to keep an eye on it.

If it was me I'd put the 1.60 rockers on there and check it over carefully. If it looks like everything clears then I'd run it down the track a few times and see what data logger says. If it makes more power then that tells you the direction to go, if it doesn't then that tells you something too.