I don't know much about the Dry systems but I had a 150HP shot on my 1988 Camaro 350 and the motor was fine up to 100k and then some.
I injected fuel and nitrous behind the throttle body.
From what I have read you should only spray computer controlled cars at full throttle.
With just a chip and some exhaust and intake upgrades you should have no problem spraying but be careful if you have altered the timing. You don't want to back fire through the intake.
I would contact the manufacture of the kit and ask them what they recomend for usage.