Help with TDC

[dondb]

I never worked on the engine since buying my truck a few years back. So i wanted to rebuild my carburetor throw on the new ram horns i have along with exhaust system and new HEI. I want to clean up the intake manifold and replace the gasket while i can get at it. I'm trying to find TDC...here's my issue. When both rockers on #1 cylinder closed my rotor button is pointing to #2 cylinder and the timing mark on the balancer is no where near the mark? The only thing i can think is someone changed the timing chain and was off and just compensated instead of redoing it?? Any help would be appreciated What are my options to remove the distributor do the work and get it back together and running?