I'm putting together a 451 with some Ross pistons and about 12.25:1 compression. I'm contemplating using nitrous but am unsure about how much. I have been advised that I should avoid plasma moly rings for a nitrous application but have heard it's okay up to a 150 shot. Obviously I have heard good things about the Hellfire rings or some total seals but also heard they aren't really a maintenance free long lasting set up. This will be a street strip car and will accumulate maybe 1500 miles a year at best. What do you guys recommend for a nitrous application? I really don't want to pull the motor down every year to change rings. Is there long lasting quality that comes with the price tag on a nice set of nitrous spec'd rings? Thoughts?