trying to start 78 el camino (350) . battery is reading 12.4 at battery and when read at starter. the problem is when i go to start, the starter clicks repeatedly and never actually cranks. while connected to float charger the battery some times reads at high as 14.5, gets momentary attempt at cranking then continues to click. starter was replaced a year ago after the same issue and worked for about a year but with minimal use. after starter was changed ,a few wires to starter (fuseable link?) burned on headers and stopped working after i repaired them (worked while burning on headers) . looking for help on fixing this issue. i don’t believe it is the battery that needs replaced but seems like it may be wiring issue. all advice is appreciated .