No spark

I'd pull the valve covers and verify timing and make sure ALL the rockers are moving up and down as they should
Ok I will do that tomorrow. Something has to be going on. The fact that it started and ran and then just shut off makes me have a bad feeling. I got it up to about 2300 rpm and it sounded good I was about to shoot the timing and just shut off like a power issue. It didn't sputter and spit and die it just shut off now all it will do is back fire it don't even want to try and hit now.