I guess I have never followed your other informative post closely enough, Kodachrome. Am I understanding correctly that you're get 330hp our of a 05 Tacoma? Although I have my Ranger mounted on a 95 T100 - V6, I also have an 04 Tacoma. How are you getting that kind of power out of your V6 combined with such great gas mileage?
Stock the 4.0 puts out 236 HP at redline 5,500 RPM, max torque at 3,850. So what has been added is a TRD blower, smaller SC pulley, fuel control mods, cold air intake, headers and exhaust. The truck is tuned for above 5,000 feet which is the majority of where it operates. So if I am at sea level on the freeway, it totally screams but does not get better than 17MPG because the fuel mixture has to be increased to prevent a lean condition. While on the East coast last year, I hit 10 pounds of boost at 90MPH on interstate 95 in South Carolina, pretty insane, but also about 10 MPG. Even when the boost gauge reads zero or a little below, that blower is still ramming air in the motor making it a heck of a lot easier to aspirate and get power on.
Driving habits are everything and having the S/C on the motor makes the torque come alive much sooner than stock, so being able to pick a happy gear out of 6 speeds and using that torque curve in a smart fashion is how I get most of the way towards 18-21 MPG on the highway, below 65 and no big headwind or course. I think the wind fairing really pays off above 50 MPH, it is even dead silent above at 80MPH. Other little things like coasting to stop lights, driving at night in cooler temps, that helps too. But when I want to scram, even with the camper on, it just flys...
It's not cheap, I did all the truck mods before I even had the camper, pre-economic crash, about 10K in motor and suspension all told.