I live in Jacksonville, Florida, and I recently purchased a 1971 2800CS that needs work (probably an understatement). I've wanted an E9 for over 30 years and finally pulled the trigger. Among other things, it has some valve tapping, and one of the lobes on the camshaft is worn. I'd ultimately like to do an engine upgrade, so I'm reluctant to go to the trouble of replacing the camshaft. However, an engine change may be many miles down the road. Does anyone have experience swapping out a camshaft and possibly going with a hotter camshaft to increase performance? Thanks!