190E Top Dead Center

[SCCA190E]

I have purchased a 1985 190E which was run previously in Mercedes Club Racing. I am converting the car to run in SCCA. Unfortunately, the previous owner has removed a lot of what used to be under the hood, particularly electronics. Needless the say, the car doesn't run very well.

So on to my question:

I am planning to remove the cylinder head and have a valve job done professionally. In the process, I moved the engine to TDC by aligning the pointer on the timing cover with the mark on the crankshaft pulley. When I removed the camshaft cover, I noticed that the notch on the camshaft flange does not align with the cylinder head.

Should both the crankshaft and camshaft be aligned with their respective marker at top dead center? If not, which (the crankshaft or the camshaft) is a better indicator of TDC?