Mystery miss on 50 model Ford Custom

[big job]

Two things > surging is starving for fuel, bucking sounds more like points are closing cause Bakelite does wear,at oddly just happened to me hardly any point gap ,,,At 5am leaving for work push the button instant purring like a kitty for about 3 min started to run ragged then stopped dead just like that. Note my father taught me when these cars ruled the road is to unbolt the fan & move it to passenger side a little and two bolts distrbuter is out easy pezzy one set points has no gap (pre 1949 engine).......