If I increase pitch will I get more pulling power(more vertical) and less speed in level flight ?

If I lower the pitch less vertical and more speed in level flight ?

What would be the effect if I increase pitch only , lets say a 10X6 to a 10X7 ?

What would be the effect if I change Prop length only, let's say a 10X6 to a 11x6

What about both, a 10x6 to a 11x7 ?

Thanks
Jim