It seems it hasn't been a good head for a good while. So imagine the power, when you find a better, different head. Time to search and ask brother Z owners on every Z face book group you can find. Z guys only sell parts to other Z guys. And almost all Z guys have spare parts! Good luck. The head you have now is no longer worth fixing it's 50 yrs old, with multiple issues and reoccuriñg ones as well.
It’s almost ready to hit the road I’ll edit the follow up videos when the car is done … I have multiple spares already but a full build would cost 6x what I spent at the machine shop …
