I had the problem two weeks ago.My problem ended up being the number one spark plug was dead.The plug looked good,just would'nt carry a spark.I would check to see if you have spark on each wire,maybe you have some bad plugs as well.check the cap and rotor for defects .Check and see if your firing order is correct.I think i would check the points to see if they need replaced or regapped.might be time for a complete tune-up. cap,rotor,points & condenser,plugs,plug wires.

1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
Image
"A house is built with boards and beams. A home is built with love and dreams."
"Look deep before you leap !!!" / "Everything is Everything"
"If I say a mouse can pull a house, hitch him up"