Ron,

I just went through this too. Check your static timing. BB/ ball on the flywheel on the pointer with the no. 1 cylinder at top dead center on compression. If the timing is off, your spark will be very weak or not at all. Once you get her running you can time it with a timing light.
Have fun.

Mark

1951 Chevy 3100
Some days you get the bear. Some days the bear gets you.