This is the biggest that I have personally seen. My partner Dean here weighs in about 150lbs, and is average height.

We have taken quite a few cats here in AZ, and their size seems to vary a lot in geographical areas. I don't know if that is just genetics, or if that ha to do with the available food sources, probably both. I have found the longer legged ones in thicker brush, and the shorter ones out in the desert and up in the rocks.