1979 305- 350 auto.
Cananybody tell me where this ground attaches. It comes from the firewall and appears not to have been hooked up for awhile.Found it while on the lift Saturday.
After looking at the picture the valve cover ground is to the right of the wire in question, I just thought the heater core ground wire was a clip and did not screw on. Heater core wire it is.Looks like the valve cover bolt ground, this wire will help to ground the motor. The last time I did a heater core the ground wire was smaller and clipped on to the heater core like someone stated to help with electrolysis causing corrosion. Matty man