M60 Swap tachometer reading

[JGood]

Awesome thanks, I was going to order my plug up but I'll give this a try with my six cylinder plug and report back.

It works fine, that's what I'm using. It will literally work with any even number engine/tach combo.

[Jean]

So , anyone found a schematics to create one of these? I don't feel like shelling out $80 for something that's got a single 74ls73 or the like $5 chip in there if that's all it is .