The main concern isn't necessarily high dyno #'s....it's putting the power to the ground. My car dynoed 229hp/214tq to the wheels on 5psi, yet went 13.8 at 103mph with a 2.3 60' time. I don't care about dyno #'s, I care about "real world" performance. The 3 liter is probably the least expensive yet relaible way to go provided you can turn a wrench, while the turbo probably has the highest pricetag, yet near limitless power potential(forged internal dependant), and good reliabilty to boot!
Good luck on your decision!
