Depends on a lot of other things. What fuel are you running, what size injectors, intercooler, IC pipes, what are you using to adjust your fuel, etc, etc. Without all the background, we shouldn't even hazard a guess.
Even *with* all the background information, the proper answer is to put it on a dyno and have a pro tune it while listening for knock with a set of electric ears, then turn it back down a notch and go.