Blaster setting correct timing

Location
iowa
new build this year with using 62t case and 61x cyl . electric is all 61x stuff. The timing mark on the 62t case is there but that is assuming the timing is identical for both 61x and 62t stators and cdi. Should I just bolt and go and not worry about it or do I need to buy a timing gun. What to do?
 
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