Traction Control Needed...

your 60' is super slow. If it isn't spinning the tires, it means you aren't making any power there either or you are babying it to get it to hook up.

Check your fuel line from sump to the carb. Check the filters (there should be 2) If that checks out (size, no kinks and clear) get yourself a new pump, preferably an electric and re-test.

If it were boiling the fuel there are other tell tale signs. Like hard starting. Is it hard starting?