Originally Posted by johnmarsh0603
What is the difference between throttle response and HP with changing stock tb to 75 mm tb bbk?
Not to much gain in hp or throttle response you will get a gain tho I got I have a lot more bolt ons then a TB and only saw total hp gain on 30 over stock i just dynoed at 207 hp 255 tq but I had the 70 mm TB 24 pound injectors mac headers catted h pipes 40 series mufflers KnN filter cobra intake manifold. I drove a stock 5.0 same year and type as mine and it felt a lot slower on response and in power but nothing dramatic . Its going to be more then one part If you want to start seeing some real differences IMO