I tried turning over the car and nothing, I felt the chassis end of the Earth cable off the block and it burned my finger. I then checked the fuses and found a blown 10amp fuse.

I replaced the fuse and then ran a temporary chunky Earth lead from the starter on the bellhousing bolt to the gearbox mount, the car turned over perfectly.

I will now run some huge Earth leads off the block to the chassis and then from bellhousing to chassis etc.

Another job sorted.