Planning on going with the Holley Dominator EFI on my 604ci hemi build.
Single dominator intake, coil on plug......
My question is how many O2 sensors do you guys run on this type of set up?
Reason I'm asking is the headers are being built and would like to get the bungs installed by the builder.

Thanks for any and all info
Kevin

One is fine, but racers run two so they can keep track of the motor in the datalogs. Run the NTK wideband rather than the Bosch.

To run coil-near-plug on a gen-2 HEMI you'll need a cam signal so either run a dual-sync with the cap instead of terminals or install a cam sensor off the front of the cam gear. I've done many and can provide pictures.

Actually Rich I was hoping to talk to you about this build and maybe get you to do it for me.

Kevin

Okay. LOL...

I have a question, what is the difference between the holley hp and the dominator unit?

One difference (I think) is the HP doesn't have transmission control ability where the Dominator does.

Dennis

The Dominator supports two O2 sensors, can control certain Drive by Wire throttle bodies, and can control certain Electronic Transmissions (GM 4L60/5E and 4L80/5E).

The Dominator vastly increases the number of user programmable I/O and allows the use of staged injector drivers.

HP: 2 high side switched outputs, 2 low side switched outputs, 4 Multi-inputs

Dominator:
16 programmable outputs
6 speed inputs (magnetic or hall effect)
30 0-5v sensor inputs
13 Multi-inputs
The Dominator has a “configuration input selection” pin that allows up to 4 calibrations to be selected with a key switch.