I'm adding an OE gauge set up to my 72. In the assy manual, it calls for a 8903964 tach lead as being the wire that goes from the coil to the tach. I guess this means that there is no tach lead incorporated into the IP harness assy, and I will have to add this wire. Does anyone know what color it should be - the lead from the tach has a brown wire with an inline fuse holder built in- and I think I've read that this wire should be shielded - does anyone know where to get this or better yet have a complete lead for sale? Bonus question, what is the correct fuse that goes in the inline holder? Mine has a very short 2 amp fuse in it - is this right?

 

M&H offers a nice replacement, shielded and all. I checked my lead, (still new in the box) and it does have a 2 amp fuse. The receipt was still with it, I had paid 29.95 back in 2000. Jeez Joe, I thought this was a mild restoration for your wife.... Firewall stamps and tic toc tachs, you keep this up and that car will see about as much pavement as your hermetically sealed '68 Hurst.