Re: Yet another MSD crank trigger wiring question
If your TB has the long old style ob-longed TPS plug get the Steathram harness which is # 558-101. If it has the small round TPS plug get the 558-104. Both will plug right into your 558-431Cam/Crank (Trigger) harness. The 431 will plug right into your new 118 crank trigger hall effect sensor.Yes, you can just tie off the cam sync plug if you are not using a cam sync. The white wire goes to the points input on your MSD box with both harnesses.Make absolutely sure you take both 12 gauge red and black supply lines directly to the positive and negative post on the battery.. DO NOT put the red wire on the Kill switch. I've seen this many times and it will give you all kinds of stupid random issues.
https://documents.holley.com/techlib...10555rev16.pdf
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Jeff Niceswanger 3740 SS
Last edited by Jeff Niceswanger; 02-13-2024 at 11:22 AM.
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