Now that I resolved my sticking valves problem, this 1961 292 is still running a bit rough. I have determined that #5 cylinder is firing, but very weakly. When I touch the exhaust manifold next to each cylinder's exhaust port with the engine running, each is too hot to touch except for #5 (front left bank) which only gets warm to the touch. Also, when I pull the spark plug wire from each plug while the engine is running, the engine lulls back slightly except for #5 where the engine does not react to pulling the wire. I checked everything I can think of. Compression in #5 cylinder is 125 pounds. I tried a new spark plug. Although the wires are brand new, I even tried a replacement of the #5 wire with no difference. The cylinder is getting a strong spark. Anyone have some ideas that I may not have thought of? Thanks, Alan S. Freeman