Edelbrock 3550 - Manual (Page 25)

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Pro-Flo EFI Installation Instructions
©2005 Edelbrock Corporation
Brochure No. 63-0115 Rev. 10/05
ADDING AFTERMARKET IGNITION
If you are wishing to use a MSD 6AL or MSD 6-Digital ignition with your Pro-Flo fuel injection, follow the wiring diagram below.
NOTE: When installing the MSD box, keep the red battery lead, the main MSD box, and the power leads to the ignition amplifier AWAY from the
ECU and it’s wires. Failure to do so will cause serious communication and running issues.