Sounds like the wiring wasn't hooked up right for the ignition or the coil is the wrong resistance.
Points system works like this:
Dist with points (properly gapped) and condenser (functioning. If they go bad, the spark gets weak and yellow) has 1 wire to the negative side of the coil (I ran a '70's Mopar electronic ignition coil with mine)
+ side of the coil gets resistored power (if yours shows 12vdc, then it's not resistored and you will need the ignition coil resistor from a '70 Dodge as well)
On the solenoid there are 2 big wires (battery cable and cable to the starter) there are also 2 little wires (or you will need a Ford type solenoid that does have them) One is marked S (for start) that gets power when you turn the key to start (some have another wire on the backside that gets grounded in neutral or park on automatics)
The other terminal marked "I" gets hooked up to the + on the coil, bypassing the resistor. It only gets power when your motor is cranking and gives the coil full power while cranking (or you will have trouble starting from the voltage drop)