I don't remember the direction exactly. Tightening it leans it out a little, so whichever way tightens the spring. Just mark the initial notch in case you want to go back, or the next owner wants to go back.
I also tried the flamethrowers. One never worked right and neither did the two replacements they sent out. I ended up putting back in the stock injectors. I think what made a big difference for me, hesitation wise, was replacing the fuel pump. I know one of my injectors leak because the pressure drops at the rail as soon as I turn the truck off. So I just made a primer button that engages the fuel pump and prime the rail for about 10 seconds before starting and Varoom! she starts right up.
I don't remember the direction exactly. Tightening it leans it out a little, so whichever way tightens the spring. Just mark the initial notch in case you want to go back, or the next owner wants to go back.
I also tried the flamethrowers. One never worked right and neither did the two replacements they sent out. I ended up putting back in the stock injectors. I think what made a big difference for me, hesitation wise, was replacing the fuel pump. I know one of my injectors leak because the pressure drops at the rail as soon as I turn the truck off. So I just made a primer button that engages the fuel pump and prime the rail for about 10 seconds before starting and Varoom! she starts right up.
Nice ride!I should probably add that its 23mpg doing around 60mph. ... 70mph.