note: theres a certain amount of dwell where the piston is at "TDC" you will then need the flywheel timing mark. its best to clean it, i use a qtip- spray brakecleen on it, clean flywheel mark, use whiteout, after it drys you can also use a marker if you want.
ive found another way to find TDC, 1 of course is standard and is somewhat cumbersome, remove camshaft (use shop manual, and do correctly). another-2, with a good eye looking for flywheel mark easily rotate crank, if you now touch a valve, easily that is, rotate crank a little back, go up top, now rotate cam 1 cylinder forward, now go back to crank, again easily rotate forward, do this till your helper sees TDC flywheel mark, again clean, mark TDC notch on flywheel. i now mark pulley side of crank (a simple whiteout mark will do) you can now tell by rotating crank back 1/2 a piston stroke where crank is, so now all pistons are (aprox) even, and at a 1/2 stroke, you can now turn cam back to its TDC and lock it out. continue timing procedure.
like i said turn crank easily so when you bump a valve and back crank off you wont have problems.
^have helper use a shop light.