Forged Probe

point me in the right direction?

Looking for a place to get more information on modifying my 04 GTO?

But i'll post the details for what i'm looking for anyways

04 GTO
383 stroker LS1
Scat/Probe forged rotating assembly
Fast intake manifold with 102mm throttle body
Trickflow 230 cylinder heads
Trickflow 286/283 cam
566 cranshaft horsepower
Whats my next logical step for making more power, i don't want to supercharge the motor?
sorry forgot to mention, but slightly obvious with the amount of work.
full header back exhaust with cut outs, slp cold air intake, and no boost

well for the right direction.. LS1tech.com

as for the answer
if you ultimately do not want boost, which i don't blame you it's and undersquare motor (climbs rpms slower), your left with few options.

1 nitrous (didn't rule this out)
2 build an even larger motor starting with either a block that can be bored larger than 3.902/sleeve the block you have
3 order a race motor from a company like katech

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