^its not really that bad…
I know someone cough with 200+ whp on top of OEM #'s, TT’d on a stock block.
As is usually the case, a good tune does wonders.
But I will agree that anything above 450whp on a stock VQ block is pushing the limits of the rods, which are the real weak point of the VQ35DE.
To OP,
Go with an LSX engine, one other person has done this so far, and they are at about 800whp.
Keep us posted.