Fuel leakage problem.

[needin some help]

So, been working on my 1974 evinrude 40 horse. Rebuilt carb and everything was o.k. ran rough, so new plugs, points, condenser, and starter solenoid.. Now when I crank engine gas runs out of the front of the carb. Engine might start or it might not. After I did the points and condensors plugs it would run fine. No problems. Now it's sporadic. Bad carb rebuild? Possible wiring issue causing sporatic power failure to the coils? I did have to bypass the kill switch wire with a new wire, the one on the motor to wire harness plug located inside the motor cooling was bad. I replaced key switch, could this be a problem? Too many variables and no enough common sense on my part. HELP