340 has me stumped

update-ive checked more and double checked,but still same issues.decided to unwrap all wiring around firewall and the large connecter block mounted on firewall.traced wire going to my positive terminal on my ht coil and it was a mix of 10 gauge,12 gauge and 18 gauge???connections are looking poor too.just found some other wire of odd gauge pieces poorly joined too.So tomorrow i will cut out junk wires and rectify step by step.What gauge wire should be running from ignition to coil positive?).0.6 ohm flamethrower 2 coil.Also mounted on the firewall is the voltage regulator,one green wire in from the alternator and one blue wire out to my ht coil positive?is that correct?it was wired that way by PO.Thanks for advice,its been big help,lets hope i get her sorted,ill update again soon