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Markus

11-06-2025 02:28 PM

The basics of setting up a Holley and MSD system

My friend has a 540 with a Procharger, Holley ECU and MSD ignition.

ECU: Dominator / HP EFI V2

Ignition control unit: 6A-L (has a 6M-2 as well)
Distributor: 8560
Cap: 8565
Rotor: 8467
Coil: 8253

What are the basics of hooking these things up to get spark and fuel?

Rookie

11-06-2025 07:49 PM

Start at page 30 of the instructions and choose your closest combination. Probably page 32
https://documents.holley.com/89821a0...aa700b52a0.pdf

Markus

11-07-2025 01:26 AM

Thank you

Thank you

Seems crystal clear to me.

Markus

11-07-2025 02:05 AM

I probably need to dive into that engine bay myself...

Rookie

11-07-2025 07:17 PM

Quote:

Originally Posted by Markus (Post 4938018)

My friend has a 540 with a Procharger, Holley ECU and MSD ignition.

ECU: Dominator / HP EFI V2

If V2 is regarding his software release, I would update that. I'm currently running V5. I don't see a reason for me to upgrade to V6 in marine trim.

Markus

11-08-2025 02:14 AM

He doesn’t even know that, but the boat came with a Holley CD, so we can assume that it is ancient.

boattrubador

11-23-2025 01:10 AM

Quote:

Originally Posted by Markus (Post 4938018)

Sits fuel injected?

Markus

11-23-2025 01:49 AM

Sits?

Sits?

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