Ok I checked the choke that is all good no nests I pulled plugs and they show the engine is running very rich some cylinders more then others so i replaced all plugs started up good but running rich so i checked my timing on operating temperature it is 34 degrees at 3000 rpm that is perfect I read on my carburetor manual that fuel pressure is to be at 6.5lbs it was at 7.5 so I adjusted it to 6.5 the front float glass sight shows the front bowl is right on the rear float was a little rich so I messed up on the adjustment and went to rich so I adjusted it to lean it out I got very low on blood sugar wife found me on the floor in the garage so took care of that went back out don't know what I did but I cannot get fuel in the sight glass now the nut just keeps turning and turning I loosen the Phillips head then hold that with screw driver and turn the 5/8 nut counter clockwise what did I mess up thank you Tom