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I think my 1977 is having this issue. 5.7L 350, 4 barrel Rochester carb. It Reeks of gas, and after about 20 minutes of driving it starts to sputter and won’t shift up. If I stop and don’t put it in neutral it does and won’t start again for several hours. But let it sit over night and it acts like nothing happened other than smelling like gas.

i thought it was the radiator leak, but I fixed that. Now it’s dying while full of coolant so it’s gotta be the gassmell. I thought it was just running rich but I guess not
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