71 Duster 360 turbo build

FYI I did have several clean pulls to 6k with this setup on the last engine. I’ve also taken at least one very solid 5500+(too rich) pull on this engine before the sensor went out. So I am focusing on sensor air gap and loose grounds at this point.

Sensor mount is very solid right between two bolts on a 1/8 steel bracket. However, it it IS inches from the alternator. Not optimal but again it was working fine until suddenly, and without any changes, it started having sync issues.

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The alternator mounts through that gap between the two brackets.