need a little advise

just changed head gasket on my 1.8 16v silvertop zetec and had to remove cams to get to head bolts now i need to do the timing
got piston 1 to tdc by lining the 2nd notch on the crank pulley to the mark on sump but now need to sort cams out
never removed cam pulleys so should they still need timeing or would they just fit straight back into place and timing be ok

hope you can help