I got the notion to install a battery mat so I changed the positive terminal @ the battery & cleaned the postive ground at the junction block. I used steel wool to get the rust off the juction block stud. I also inserted a new washer-[with the points on it;like a star] in -between the one against the car & the wires. The lights would flicker only slightly before & only in gear.I thought I was fixing the problem now they are worse than ever. What did I do & why? What are my next steps? Thnak you in advance.
1968 327 factory coupe.