The stock oilpan should be just high enough to not rattle on the K, and be a super PITA to remove "in frame". For TTI installation, the lower the better. On mine I think I could just get my thumbs between the corners of the oilpan and the K. I had to shim one side a lil to level the carb from side to side; I forget which side, lol. I'll guess it was the driver's side.
