Future upgrades graphics card

[Geekage]

Setup
I5 4570
Asus Gtx 760
8Gb Ram
Corsair cx 750m
6 case fans

So my question is about future upgrades would I need a bigger power supply and also a better cpu so I wouldn't bottleneck the gpu's upgrade to run in sli with another Asus Gtx 760

 

[badboyrog2]

''would I need a bigger power supply and also a better cpu so I wouldn't bottleneck the gpu's upgrade to run in sli with another Asus Gtx 760 ''

NO!