Help a brother out.. 318 questions

.020 was a standard Mopar over bore. You can just get rings and hone if there is no ridge at the top. There is a lot to boring and honing blocks to get the most out of an engine. But we used to just ball hone, basically deglaze and clean up what is there, and rering back in the day and they ran good. You can do better, but that is the short answer.