Just a FYI you can run a 150 shot if tuned correctly. Need 2 heat ranges cooler plugs,no more than 10* timing(with 93 octane)-I'd actually take out 2* for safety,and the wet systems that inject nitrous/fuel before the throttle body can cause fuel puddling in the intake manifold.
This can lead to a devastating nitrous backfire.
I suggest using a dry system or a wet plate kit from nitrous express that installs between the upper and lower.
Before adding any power adder you need to address the chassis,
suspension,brakes,and tires. Nitrous also is fairly worthless on the street with regular radial tires. The instantaneous nature of the power will smoke the tires.