When you install EFI on your engine, most systems will require the ignition timing to be advanced for the ECU. This can cause issues with rotor phasing, but the new Adjustable Rotor remedies this issue! The Rotor is based on MSDs popular PN 8467 Race Rotor. MSD 84211 Rotor Phasing Kit for MSD Distributors Sku # 54784211 Mfr. Part # 84211 Condition New Brand MSD Sold Each Details When you install EFI on your engine, most systems will require the ignition timing to be advanced for the ECU. This can cause issues with rotor phasing, but the new Adjustable Rotor remedies this issue! The Rotor is based on MSDs popular PN 8467 Race Rotor. Specs GTIN Code 085132842117 Reviews Yes Rated by Jeff on June 24, 2026
Summary: Worked perfect running 20 degrees of start retard and 36 degrees locked set at 26 degrees centered on number one perfect
Works great Rated by 1320 truck on December 21, 2024
Summary: This rotor allowed me to properly phase in an MSD pro billet distributor with an old obsolete Classic Fast ECU.
I will buy this product again Rated by ponyman on December 06, 2024
Summary: This is essential if you want an ecu to control the timing. Just lock out the distributor and install this rotor for final adjustment
Yes, I recommend this product.
Perfect for rotor phasing Rated by gnarlo on October 10, 2017
Summary: Do your homework and read up on the procedure and importance of rotor phasing, then install this on your MSD distributor. There are quite a few videos and articles out there. It's important to get the rotor as close to the terminal/post on the cap (at full mechanical advance) as you can to maximize the spark energy going to the plug. Burn the mixture in the cylinder, not the air inside the cap.
Yes, I recommend this product.
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