I noticed on your AR bottom end it looks like you filed down the fork that comes off of the oil pump and hooks into the slot on the crank nut. This effectively deleted the ability to use the tach right? Or am I missing something?
To be able to use a tachometer again would I just have to source a new oil pump? I do want to run one but can't tell if it's just something I need to reinstall within the pump or if the whole thing needs to be swaped. I can't quite tell from parts diagrams.