Carter 4 Barrel Top Cover Leaking

I have the same carburetor, except for a four speed, 4294S.

I had the same issue, the float level was too high. I pulled the top off, reset the float and it fixed the overflowing issue.

On another note, I also had a strong smell of gas in the garage after driving my car. I started using no alcohol premium gas. My garage still smells a little but no alcohol gas made a big improvement.