Hi Dave and Bogie.
Yes to the earth from the heads to the firewall as well as block to chassis. I have oversize cables there with the rpm al heads. The battery is fully charged now after a night so its time to check the cranking spark as you say. I am waiting for the neighbourhood "word" to get back to me about the tow home.
I sat low in the seat.
I hope its not the module inside the distributor.
Thanks. I will update asap.