Stock 94 gt how much (Nitrous) can it handle?

[kwik50gtgt]

Hey guys,
I need some info. before I possible go off the deep end...?...

I have a 94 GT with cold air, pulleys, H pipe, catback, 410's, and a built AODE.

I also have a ZEX dry kit with a 75hp shot set up right now.
It worked great for awhile now, I would say I am in the mid to low 13's right now.

My base timing is set at 10 degrees and I have 2 heat range cooler plugs in.

My question is,
What is safe for my stock motor with 75k on it to handle for nitrous?

I am going to the track in a few days and I want to use the 100hp shot atleast. I would like to use the 125hp but I heard sometthing about the pistons they put in the 94 and 95's not going good with nitrous.

Any info. would be very helpful.
Thanks...