Yes, I did move the blind nuts prior to installing the tank. I like to mount 4-strokes sideways whenever I can. I think they are easier to start that way (less loading up). It is easy to rotate the mount around the center thrust line. Also, I did away with the soft mount system they supply. It is almost impossible to keep the muffler tight on a four stroke with a soft mount. I discarded the cushioned part and just substituted aluminum shims. Works fine.