But now it was time to upgrade it more post millennium standard so the EFI system get the input it needs.
Autometer had a sensor that seemed to fit, so I ordered one from US.
When it arrived it was just what I have been looking for.
But the mounting hardware was not solved.
I made a aluminum spacer and than a nut with 1/8" NPT thread.
It paired up nicely with the stock hole in the rear cylinder head.
The final mount