5.9 FI Magnum swap in 73 swinger

jarvitron said

DionR/others who want to do a magnum/manual swap -
If y'all wanna use the stock ECM and a manual tranny, why not get one of the 32 tooth crank trigger rings and cut off all but eight of the teeth (pretty sure the gates on the magnum flexplate/flywheel are evenly spaced), then relocate the sensor up to the crank pulley.

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That might work, I was thinking of something similar. Only hang up might be that the stock sensor sees (I think) a drop in the sensor at each spot, rather than a spike. The OEM flexplate has eight little windows, rather than teeth.

I've been thinking to just cut eight equally spaced holes into the OEM crank pulley and use a more compact pickup.