i find i don't down shift into 4th much at all and my foot is not always to the floor. sure its not huge hp gain but in my opinon its how the pinz engine should have come from the factory.living in a mountain area the extra hp gain is well worth the price and jim was very helpful with any questions i'd had and tips with the install. i also installed a mgl guage that i would recommend to anyone that wants to protect there investment well worth the 300$ for the gauge and 300$ for the sensors because with out it i would have cooked the new 2.7 l kit. the truck was running great but #4 cyl was running at 475 deg thats 100 deg hotter then it is now. the problem was the intake manifold bases where they meet the cylinders were not perfectly true had a slight rocking motion when put on a flat piece of glass so had to sand flat. i went through 3 sets of intake and exhaust manifold gaskets taking apart and putting back together to find that problem 
but now i shouldn't have to worry about it for many years.thank you again jim for all your help
thanks
