What could cause this? 360 problems ####update####

Three key timing set by chance? Circle, square, triangle on bottom gear? Maybe you're out a third of a turn, if assembly went south.


That is a BUNCH out of time. Being off using the 4* advance/retard keyway and the 0 mark to line up cam will put you about 60* out of time IIRC.

That's my guess, wrong mark on crank gear used to line up camshaft. Always ALWAYS ALWAYS on a proper SB mopar timing set, if the crank keyway isn't lined up roughly with the #1 cylinder when installing the set, it's OFF.