@niko9926 Damn you are a lucky guy being able to go on a cut at 3400 calories!! Haha.
The only change I would make is to maybe reduce your carbs further. I think that will help with your fat loss. Because you're going to need so many calories, you'll still need to keep them high-ish, around that 300g mark. So maybe on days you train, for starters, aim for 300g carbs, and increase your fats to make up for those lost calories.
If you can get that much protein in daily (316g), then great, but if you want to lower it a bit to more like 1.5g per pound of lean bodyweight, that would be OK as well. Again, if you did that, I would just suggest increasing the fats further to make up for lost calories.
Then on your off days, probably reduce your calories by 300 or so (down to about 3100 calories). What did you put for your level of training? Did you put hard training 6-7 days a week?
And 2 - 3 months should be enough for your cut to get down to 12 - 15% body fat!