[6pack] Gas in the oil?

[Robert Liam Gannon]

in this case the leak goes right down from the pump and into the
crankcase, not through the carbs?    But that wouldn't cause the hard
start and no idle, right?

IMHO I would say yes. With most of your gas leaking into the block through
the pump housing, next to no gas is getting to your carbs and then to the
cylinder. The cylinders which are firing, are not able to idle due to very
little gas getting to them through the carbs. More than likely numbers one
and six are firing dry.2-4 are getting weak flow.