are you talking about using TIMECODE to sync the cameras?
if so beware, because Premiere does not record the correct timecode from multicam (time-of-day) tapes.
After the first timecode break, Premiere will blindly continue recording , writing the WRONG timecode on all the clips, meaning you can not sync them using the timecode.
You have to either sync the clips by eye, or use a NLE which records the CORRECT timecode from the tape, like Lightworks, or IFX Piranha, or FCP, or Vegas. In fact , almost any system apart from Premiere.
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