Having a fuel issue on my 78 Cutlass with a 260.
Fuel pump works fine after testing...squirting fine upon cranking a while. I vacuum pumped to prime the fuel line, hook it up to the carb, and she'll run all day. If I let it sit more than 20 minutes and go to crank it, nothing until I prime the fuel line again. Line isn't leaking...no fuel anywhere. I tried to blow the return line clear but I'm hearing hissing underneath....why am I losing my line prime?
Fuel pump works fine after testing...squirting fine upon cranking a while. I vacuum pumped to prime the fuel line, hook it up to the carb, and she'll run all day. If I let it sit more than 20 minutes and go to crank it, nothing until I prime the fuel line again. Line isn't leaking...no fuel anywhere. I tried to blow the return line clear but I'm hearing hissing underneath....why am I losing my line prime?
