Timing issue?

It is dripping fuel out of the rear boosters. When it is running bad look down inside the secondaries. You should see no dripping fuel. Fuel heats up gets bigger and the float level gets that much higher. Maybe? More dripping. You can pull both bowls. Measure the distance on the “correct” front bowl. From the top of the float to the bowl edge. Holding it upside down. Then get the back one a hair bigger gap between the top of the float and the top of the bowl. You can stick drill bits in to measure. It should get you close. It at the very least will stop it from dripping fuel out of the secondary booster.