Hi Kristian,
Single plane and 830 carb would be beneficial for those cubes.
That cam, however, will not let that extreme stroke breathe much beyond 5000rpm. I'd probably go for a major cam change first. Something like Lunati 20350518 or Comp 35-602-8. I'd probably take the comp for the narrower LSA. That stroke tames the cam quite a bit.
Then, I'd try the super victor and last change the carb.
I'm sure not everyone agrees though...
-Janne
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