FI Tech injection. Tank inc. did the 66’tank (with baffles and internal pump)and I ended up just running a single 14ga wire from coil to the dash mounted tach I bought from Van’s LLC. It looks close enough to factory but modern. Works good for my needs.
I was thinking f selling the factory tach and sender for the 66’ not sure what to ask as it was tested with electronic ignition and worked. But It was made for points. Nice shape too. 50 year old electronics are tough selling. One drop by UPS and it’s toast.