Julian,
I bought 6 of the MSD cam syncs about two years ago from Summit because they had a price of $90 on them. I thought it was a mistake. Turns out, they were closing them out. I can't figure out why they would discontinue this line. At that time 351c version was unavailable but it was just their W part (MSD 8506) with a C gear. You would think that the 429/460 market for same would make for more than viable market.
All of my "extras" are gone now or I'd help you out with one. When I bought all the W plugs, the C had been discontinued. When I called MSD direct, they would have made one for me so it might be worth calling MSD directly. I spoke with David Nunn recently who had ran into the same dilema, and per his post above, looks like MSD will accomodate.
Also, I believe either msd or electromotive sell a kit that puts a hall effect or some kind of mag sensor on the cam sprocket and then a pick up on the timing cover, but you would still need a plug. Morroso makes some distributor plugs but not sure if so for sbf.
I think I read somewhere that there was a Ford OE distributor that had a sync? 429/460 truck EFI maybe?
Here's the MSD W plug next to a C distributor.
Best Regards,
Kelly
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