I am playing All the mods 6 to the sky and im having shading issues when using the framed slopes, i am using optifine and did change the config for ferritcore, that fixed the texture issues. But can this be fixed somehow or ?

I will give that a try :D

Which version of Forge and FramedBlocks?
This looks very similar to issue #5, please try the solution given there and report back if it works.

That didnt work, but i did turn smoot lighting level off, that apparently did some shadow stuff and it fixed it :D

Please also try it without OptiFine with smooth lighting enabled.

The option optifine added, i disabled that, the vanilla smooth lighting is still on

Oh, ok, then it is probably just OptiFine fucking up the Forge light pipeline.
I will close this as "OptiFine is not supported" because I can't do anything against problems caused by them.

Yeah think so too, thanks for the help tho :D