Here is an example of what a high ram vs a LS6 looked like at 525hp on a engine dyno. The nnbs will be similar to the LS6. The nnbs will be a better intake due to the tq thru the curve but it will not fix your peak numbers if anything peak will come down a lot. Just wanted to give you an example before you go to the trouble of changing intakes and your peak numbers come down even more