Are the points set properly?

Turn IGN on and try opening/closing the points with a screwdriver whilst holding the coil HT lead near the block/earth. The spark should jump to earth as the points open.

Check ign 12v to coil pos. coil neg to points/condensor

You can also check for points opening and closing while cranking with dissy cap off. you should see a very small spark between the points as they open.

Dwell on a 4 cyl is normally set between 48- 50 deg. if you have accses to a meter.