Quick question and I think answer. I have a 54 3100 with a 62 235 c.i. engine. Last week I noticed that there was percolation in my glass fuel filter bowl. This was after a 20 mile trip with weather in the high 90's. Lots of coughing and missing for the last ten miles. Was hard to start after shutting down. After reading your post I checked, and low and behold, I don't have a insulator between my carb and manifold. Ordering one from J.C. this morning.
