Timing changed after Cap + rotor swap?!

Hey guys,

i changed my cap + rotor on my ''74 Duster a while back.

my timing before the swap was 10 Before, now its 2 After.

as far as i know the timing cant change by changing a cap and rotor for a new set?!

dist. hold down bolt is nice and snug.. vacuum advance is not connected..

im complete in the dark to see 2* after with my timing light after a cap swap..

a buddy of mine suggest i accidentally misplaced all wires by 1 position to the right or left.. and thats about the only thing i could agree with what would make sense..

anyone?