I'm in safe hands then ,thanks for that. As you can appreciate parts and knowledge not too common over here.
I got sick of taking it in and out the engine to test, so it's currently set up on the bench with a battery, coil and 8 spark plugs, so much easier to adjust and set up than in the car. I've converted it to a GM HEI unit and fine tuned the phasing by shimming the vac advance, see video here