years ago, I had a bad fuel pump on a 67 273 2bbl cuda. I was working my way thru college, so I was pretty bucks-down. I'd pull the pump and hand actuate it and it would pump fuel from a pan I had filled with gas, so I put it back on, and it would work for a few days or a week, then it would quit again. So I pulled it back off, and "retested" it. I got it to pump again, so I put it back on. Shortly thereafter, when I checked the oil and I was about a quart or more overfilled it dawned on me what was happening. The pump was leaking gas into the engine. I bought a new pump, changed the oil and filter, but the damage was done.
