That's the max power it will put down with a GOOD tune and be a great weekend worrior. Alot more then that you will likely snap a rod. But yes, all stock. Don't even have to open a valve cover!
If you want it to last 150k, I would keep it around the 600hp level and you won't ever have to worry for the life of the car.
These motors have made 800 hp without opening a valvecover, but that will NOT last very long.
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Twin Turbo LS1 '71 Chevelle
1000 hp 93 octane street car
6 speed
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