Well, looks like my '75 750 is down for the count. My pistons did not fair to well in the melt down. The ring lands have heated up enough to capture(pinch) the rings in place, not allowing for easy movement. I was really hoping is was just a head gasket. I have a ton of those! I have a 78F motor I was going to finish the assembly of and install, but the sprocket offset has killed the deal. Oh well! The show will go on! Godzilla will continue on a SOHC! My buddy will graciously let me ride his CB750 for the trip down South, or he will be on it himself with Godzilla (depending on the weather). If my friend rides, I will follow on my Aprilia. All is well with the continuation of the relay!