Long story short version. The #5 cylinder is dead. I have checked just about everything i know to check, and i am very well versed in engine diagnosis and repair. I have to be looking over something simple. Carbs are fresh predators on a tunnel ram. Head gasket is good, no cracks in the head, block, piston, or valves. I have not done a compression test or leakdown yet, i will do that tonight. But the old finger in the spark plug hole, the #5 cylinder feels just like the other known to be firing cylinders. Meaning that it is not a complete loss and even if it is low, it would have to contribute some to the engine. Valves are not sticking, and they are opening correctly. Valves adjusted on a solid roller, no flat cam lobe. Ignition is good, getting good spark to the cylinder at the correct time. When it is running, and i pull the #5 wire there is no difference in engine idle or rpm. You can tell on the over transoms that there is a dead hole on that side, and the #5 header tube is no where near as hot as the other 7. What else can it be? I need some ideas, because i know that i am overlooking something simple. Hopefully somebody will chime in.