to the non-Z32 clocking but I'm not 100% totally sure of that. May be someone else can shime some additional infos.
They are good for what you want and you should be able to get around 430 rwhp daily at 16 psi or so with 94 octane from Petro Canada. You can even push them further to 19 psi to get higher numbers but heat soak will quickly becomes your worst enemy.