I only call BS when I smell it, man. A "typical" V8 puts out, say, 225-350 WHP at the wheels. You're telling me you believe you're adding ~50% with porting, cams, exhaust work, and an intake? Why aren't you writing books for engineers to use? Why haven't I heard of you?
I have been building engines, both race and street, since I was 17. I started out in Subarus (because my first Subie's timing belt broke, and I wanted to fix it. Little did I know...), and have worked with Fords, Chevys, Hondas, Subarus all both in street and racing configurations. I know what an engine can and cannot do.
Now, if by "typical" V8, you mean an LS truck engine (notoriously plugged up), you MIGHT get your 125 WHP out of it with a head swap (no mere port job, mind you, but perhaps even that on the aftermarket heads, or a CNC jobbie), big cam, race fuel, intake, TB work, long-tube tuned headers and a free-flowing exhaust, and a fair bit of ECU tuning. But please don't BS a BS'er- you really wanted us to believe that you, having spent "countless hours on a flow bench" thought that a low-compression (9.6:1), low-revving (sub-6K), 3.8L engine that is rated AT THE CRANK for 205 BHP (with accessories, but no drivetrain) could gain 60 WHP (that's at the wheels, after your ~10-18% parasitic drivetrain loss) with just some head work and exhaust? I think you need to head back to the flow bench. Step 1: self-educate: http://www.allpar.com/mopar/38-40.html
I am NOT someone who is out to belittle you, or anyone else, to feel smarter, or make myself feel good. I am not trying to insult you, or make myself look awesome. Sorry, but I'm intelligent enough to not need the internet to do that. I simply don't abide by bullshit, and can't stand how many people out there belittle my profession by calling themselves "engine builders" and "technicians" and spew forth bullshit all day long on the internet. You BS'ed, I called you on it. I had a laugh. You likely got red in the face. So it goes.
Long story short, forget making any more power from the 3.8L. It's a joke of an engine, and it's barely adequate. Spend your time paring down unnecessary weight or on re-gearing the rig (that's about the only way to get any "performance" out of the 3.8L). A programmer isn't awful, and will help with fuel economy, if nothing else. If you really want to throw time and money at it, look into a Hemi swap, or the LS swap. Either will net you some nice power, but at the cost of about what you'll pay for the whole damn rig
Either way, remember: "power" and "3.8L" only go together with a negative in there