A question about nitrous setup

[TheRX7Project]

OK, I figured I'd ask you guys since you do nitrous installs.

I've had a nitrous system begging to be used for a couple years now. I never got around to installing it on my previous project, but want to install it on the new one.

It is a used NX wet system. Originally it was for EFI but the '7 has a Holley intake manifold and carb.

I know I'll need a plate and jets. I already sized out the jets I'll need based on my fuel pressure and HP desired.

My question is that I only want to spray a 50 shot, but every nitrous plate / system I look at says it is for 100+hp. I have a nitrous plate available to me (free) but it is a 150 plate. I saw the SNIPER kit says it is adjustable for 50-150hp, and comes with jets for 100 or 150 (with jets available for 50hp). Which leads me to ask, can I just jet the (free) plate down (i.e. use smaller jets in the lines going to the plate) to knock down the horsepower of said plate, or is this a bad idea?