Update: its showed a cam position sensor and TPS error. Its got fuel and spark. We pulled the intake manifold and bumped the crank, none of the valves show any movement :( So most probably the timing chain is gone, worst case is it bent the valves and damaged the pistons...gonna pull the heads next and see what we got. I guess winter started earlier for me with this project...
Vette has had an electrical issue, waiting for a tow now...