Welcome to the forum. not sure what a "blessing line is"? i'd start with the fuel system. change fuel filter, clean sediment/water separator bowl. when doing that, open the shut off &be sure there's ample fuel flow. while you're at it, maybe drain off a quart of fuel as well. check return line. maybe crack the filler cap when cranking to be sure a vent isn't plugged
also could be contaminated fuel problem, moisture, etc. maybe others here will recommend a product for problem fuel. let us know how it goes