My pantera will stall after about 15 minutes of driving to the point where I have to continually keeping pumping the gas to keep it running. I can only do this for a few minutes then it dies altogether and doesn't want to restart until the following day. The smell of gas is overpowering...

When it does start again, there's a lot of smoke for the first few minutes (excess gas being burnt off) and then the car runs fine until the scenario repeats itself again. I've changed the coil, condenser and points in the last 6 months so I don't think its an ignition problem, but I could be wrong. My gut feeling is it's the carb... Any experience filled insight the Bosswrench can provide would be most helpful. Thanks.
Original Post
Sorta sounds like you're flooding. Could be a ruptured power valve which will let raw gas continually run into the intake. Power valves on older Holleys are sensitive to backfires & will tear. It's such a problem, Holley modified its whole line of 4 bbls a few years ag to include a ball-check valve blocking backfire pressure spikes. Reformulated O2-carrying gas attacks all rubber & viton fuel components, and you may have lost the fuel pump check valves, basically running the car out of gas as the float bowls empty at higher engine speeds, or the viton-tpped float valves may be leaking which would flood the motor. Finally, the distributor drive gear roll pin sometimes only PARTIALLY shears, retarding the timing 10 or so degrees and causing hot, crappy running. Don't just check for a roll pin tip at each end of the gear hole- check that the two ends are in line! Let me know which of my guesses it was....
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