One way to make more power out of our 3800s is to stroke it out and then build it ground up with a bottom end, top end and whichever force induction you use, the power would be much greater. And obviously you would make more power with a turbo......
After you do that, with the 4t65e-HD built to its highest performance potential, you'll be making nice power. Not 1000hp/9kRPMs power, but you will be making power.
And honestly, if we're not using our cars for strickly racing, then all this would be unnecessary, Bc at the end of the day with the few mods we have available for our cars, these 3800's make a decent amount of power for any horsepower enthusiast out there....