Crooked engine.. Is this normal??

In the 2nd pic, what is mounted on the inner fender in the top left of the frame? Looks like it has a filter on it. Thanks
So I built this car 17 years ago. Sold it and it went through 3 owners before I got it back 6 months ago. It is a vaccine pump for power breaks on passenger fender and a piece of what looks like rubber roofing over distributor (both put in by previous owners). Will be back to manual brakes shortly and the rubber roofing will be in the trash.