Cpu temps at 60-67 whiile running prime95

[Dblkk]

I've got a FX8350 on a Asus M5A99FX Pro board. I have it running 100% stable at 4856 MHZ, but the lowest cpu voltage I can use is 1.45625, if I even lower to 1.45 core 8 usually fails. Problem is temps are higher than I would want. Granted this is using prime95 torture test blend mode. So the cpu is at 100% load right now so temps wont always be this high, but gaming I usually run about 50% cpu usage, but I render and convert a lot of videos in a given day as well as other rather intensive programs. So the CPU will be running 75% minimal while im using it.

So my question is, how do I lower temps?
I have a corsair 540 air case, with 2 140mm fans on top as intakes, and 3x120mm fans in front as intake, and 1 140mm fan in rear as exhaust. yes I know top ones should be exhaust as well, but want these fans blowing down directly onto mobo vrm heatsinks.

As far as cpu cooler, I have full custom liquid kit. Mainly XSPC, have 360mm radiator in front, with a d5 pump on a 170mm photon res, and a XSPC raystorm cpu block.

So are these temps to be expected especially with my cooling system. Is there anything I can do to lower these temps, id say 55-60's would be highest id want. So would adding push/pull on radiator help? That would mean loosing my case dust filter but I could manage to figure something else out for that. Otherwise would using a different thermal paste help out? I've tried arctic silver several times vs the arctic m5 several times and the m5 seems to run a few degrees cooler. And this was done several times each way, so this is honest what the end result of over a days worth of testing.

 

[Dblkk]

So honestly im just looking to lower temps 5 degrees.
The water temps state 32 degrees while the cpu is 60's, and that's taken from a inline temperature sensor hooked up to my nzxt sentry 2 controller. So I don't think that adding a 240mm rad on top would help, plus I will be adding gpu to mix with that 240mm rad, so would like to get cpu temps down before I add a gpu to loop (it will be 770 evga sc maybe/just maybe ill get a 780ti if I can afford it when I get my tax returns which is when I plan for gpu waterblock and rad)
Ive read several reviews where push/pull doesn't help for crap, but if it can lower temps by a few degrees that's all I need. On another note, will push/pull help even a few degrees when im talking really high temps, and high voltages?
And as far as thermal pastes go, im open to try new things, but not on a whim. Please only recommend I take apart computer to try a thermal paste if you have actual experience, positive experience, with it.