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 Projection MPI ECU/software, which has even more tuneability than the 4Di box.

The 650-cfm TBI originally had four 45PPH injectors. It has 2 injectors upgraded to 85PPH, in essence making it capable of more than 650-CFM and able to handle up to about 400-hp. It was installed on a 67 Vette 350HP 327-V8.

Includes wiring harness, sensors, and fittings, including closed-loop 3-wire O2 sensor. It will need a new EFI fuel pump.

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 $725 for the kit.



I would also be interested in trading this kit for the following :

1) Complete low-mileage NV3550 setup from a 4.0L Jeep ... bell hsg, flywheel, clutch setup, tranny and master/slave cylinders.

2) Complete low-mileage (or rebuilt) AX15 setup from a 4.0L Jeep ... same as above, but external slave cylinder only.

3) Low-mileage (or rebuilt) Ford T18 or Ford NP435 that has been adapted to a Dana 300 or NP231 23-spline t-case and a Jeep 4.0L or AMC V8.




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Ok guys, I spoke with Holley Tech about the mixed 45 PPH & 85 PPH injectors and they need to be matched (on the 4Di/MPI setup). So, I have pulled the 85 PPH injectors out and reinstalled the other two 45 PPH injectors for the TBI. This makes it a true 650-cfm TBI, capabable of supporting up to 300-HP.

The Holley Tech guy also said that the 650 & 700-cfm TBIs are identical, except for the 650-cfm having 45 PPH injectors vs. the 700-cfm having 65 PPH ones (the 4Di 700-cfm will handle up to 400-hp).

Since I have turned the TBI back into a 650-cfm unit, instead of the custom TBI, I am going to modify this listing to sell just the 4Di kit.

That means I am pulling the 85 PPH injectors and MPI controller/software out of the package deal and will sell those separately, should someone have an interest for them. The MPI controller and software has more functionality to it.

So, the new price for just the 4Di kit is $625.

P.S. I would still be interested in trading this for either an AX15 or NV3550 setup.

Ttt

No longer needing a trade for a transmission. Just picked up a sweet NV3550 setup.

so is the fuel injection still for sale?

so is the fuel injection still for sale?



Yes, the 4Di kit is still for sale.

bump.