How about 150 shot and done?
The $$$ I spent on the N2O kit has been some of the best dollars I've spent on mods for my car. You'll be pleased with the increase in power.
As for being "done" -- with N2O you aren't backing yourself into a setup that would be costly the undo if you decide you're not exactly "done".....you could easily add heads + cam to the setup and would likely only need to address fuel pump and potentially injector swaps.
From my experience, a 150 shot on street tires can be a blatant waste of power because there's no traction to support it. I'm a M6 still rocking a 10-bolt with a 3.90 gear and run a Nitto drag radial. I understand that I'm way beyond the limits of what the 10 bolt can handle long term, however being smart about things has helped it make it along nicely for a while (most of my racing is from a roll, no hard launches, etc.). If you're spending a bunch of time at the track, I'd stay away from the 10 bolt + stall + drag radial + 150 shot combo if you don't have the cash in hand to swap a 12 bolt or 9" rear in when it finally goes.
As for being "done" -- with N2O you aren't backing yourself into a setup that would be costly the undo if you decide you're not exactly "done".....you could easily add heads + cam to the setup and would likely only need to address fuel pump and potentially injector swaps.
From my experience, a 150 shot on street tires can be a blatant waste of power because there's no traction to support it. I'm a M6 still rocking a 10-bolt with a 3.90 gear and run a Nitto drag radial. I understand that I'm way beyond the limits of what the 10 bolt can handle long term, however being smart about things has helped it make it along nicely for a while (most of my racing is from a roll, no hard launches, etc.). If you're spending a bunch of time at the track, I'd stay away from the 10 bolt + stall + drag radial + 150 shot combo if you don't have the cash in hand to swap a 12 bolt or 9" rear in when it finally goes.
