Re: injector size
I went to smaller injectors, at 60 psi, was due to a suggestion of a long time friend, who is a retired GM Calibration Engineer (“tuner”). Same reason the GM LS series engines went to higher (60psi) fuel pressure than the LT engines the LS series replaced. Higher pressure makes for a finer fuel mist from the injector, which is easier to fire. More consistent. There is some power & emissions improvements from injector timing as well. Large injectors are not required to find power there. My cam position sensor is adjustable. That is where I effect my injector phasing.
I also run mine in Sequential Mode.
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Ed Wright 4156 SS/JA
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