OK folks, let's try this again. After this past weekend, a mechanic friend and I have determined the noise from my engine is not a bent pushrod (see earlier post). We did a compression test on all 8 cylinders. (readings were between 90 and 115 on all).

 The problem is a steady "popping" (burping?) coming out of the carb. When you place your hand over the opening it muffles the sound. Could this be a timing issue?

"You can lead a horse to water...but a pencil must be lead."

 

Cleveland, Ohio