[Ricks911s]

Can someone/anyone help on the tach conversion?

There are three parts of the conversion that I'm confused with.

(1) I have the updated tach itself. The back connections look identical to my 76 tach. The top 5 connections are slots for the little lights. There are 3 spade connections on the bottom. The purple/black wire, I believe, is the one that needs to be updated (or is it all three) to the purple wire?

(2) Where does the wiring for the tach come from on the engine itself? I couldn't find a purple wire on any of the plugs or wires on the "new" engine.

(3) Did you run the wire between the tach and the engine directly? Or did it pass through a fuse or some other device?

Thanks.