Beautiful truck.I changed the 02 sensor out. Seems pretty quick to have one go out
My 72 with a sniper setup keeps fouling/killing 02 sensors as well. I swapped out a couple of them under warranty at Autozone, but the last few times I have popped out the O2 sensor and heated the end of it up red hot with a MAPP torch and it seems to have worked with a 100% success rate so far. I think I have burned the carbon off of my current sensor three times now. Worth a shot and this saves $$$ every time it works!