I have a nearly new 650-cfm Holly 4Di Pro-Jection Kit. Mounts to a standard Holley Pattern 4-bbl intake, with a Holley 4-bbl TBI unit. Comes with the digitial 4Di ECU/software, as well as an upgraded (newer than 4Di) Projection MPI ECU/software, which has even more tuneability than the 4Di box and is more robust in its programing functions and tuning capabilities in Microsoft Windows.
The 650-cfm TBI has four 45PPH injectors. There are 2 extra injectors rated to 85PPH, in essence making it capable of more fuel flow for increased horsepower. With the currently installed 45PPH injectors it will handle 300-HP. It can also be ugraded with FOUR 65PPH injectors, which makes it into a 700-cfm TBI capable of handling 400-HP.
Includes wiring harness, sensors, and fittings, including closed-loop 3-wire O2 sensor. It will need a new EFI fuel pump (not included).
This setup is nearly new and looks awesome. Simply install the system, hook up your laptop, install the tuning software and fine-tune it through your laptop.
Asking $675 for the complete kit.
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Originally Posted by Patf10
