I am running 15lbs of boost with my KB and I asked the same question.

It was stongly recommended to me that I not add the nitro at this time. That coming from a vendor, so I am taking it seriously.

Dan

 

16 pounds with the KB here. Just a little under 500RWHP. I wouldn't even think twice about spraying it. I am already at the edge where if anything goes wrong, it goes boom. -Mat-

 

I listened to all of this stuff a month ago. When you blow it up like I did and have to spend $7000 to fix it how many of them will send you a check. I made 400hp before adding the upper pulley and removing the mufflers. I ran the 55hp wet shot and it ran great untill the 1/8th mile when a rod let loose big time the 1st time I ran it. It wasn't deltonation or being lean the rod just failed. If you run a so caled safe tune (less timing. lower shift point) it might help, but it is helping by limiting HP and therefore stress on the rods. Why get the nitrous if you have to do this. Either pay upfront for rods and pistons or forget more than 450hp in my opinion. This is not a nice unplanned expense.