I've already got the valve cover and upper timing cover off of the engine in my truck, and the spare/blown block I took out of it. It seems like the valves are both closed at tdc but want a way to be sure. It seems odd that it would have an issue, its got around 80k on it and I do oil every 2500-3000 miles. Last one was triple that before a rod bearing gave up. I'll check the rotor on the dizzy to see what it shows, I'm kinda baffled at the moment.