Nitrous can be applied safely.
Nitrous can also be applied dangerously.
The aftermarket people that dfwcatsclub has mentioned have all done extensive research and have provided quite an aftermarket selection for us to choose from (also there's Nitrous Works, and several others - most of the big aftermarket companies have something). In the early days of nitrous, the automotive community didn't necessarily understand how nitrous made so much power, and thus many engines got "converted" into scrap iron/steel. Additionally, those of us who love our v8s crave MORE POWER, and the power gained from nitrous comes too easily, so we quickly fall into the trap of MORE MORE MORE.
Be conservative, don't use it at every stoplight, and keep your redline consistent or reduce it a bit (nitrous makes your engine want to pull a few more RPM than it would otherwise), and you'll probably be ok.
One of these companies (Edelbrock I think, but I'm not sure) makes a progressive N2O system, allowing you to gradually apply the nitrous power so you don't lose traction, and it's also easier on your drivetrain.
HOT ROD magazine a year or two ago TRIED to grenade a small-block Mopar with Nitrous and they COULDN'T! Of course, if your engine is just about ready to go anyway, it'll go.
radcat - I'd like a copy of that article too, if you don't mind.
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