Got these dark and light faces in textured view

I have some weirdness with faces when unwrapping, I’m pretty sure it’s not a material thing (I could be wrong but I applied the same material to all of the faces) and I’ve tried applying the scale and rotation to object data for the object. Any ideas on this one? Any help is very appreciated

It doesn’t look like a normals issue, but just to be sure, select all your faces and click on ‘two sided’.

Nah it didn’t do the trick. Thanks for the suggestion though