1966 slant six 170 timing mark

It's there. It might be really light. Also, when you get the mark on zero on #1 tdc, the distributor rotor should point to "about" the 5 o'clock position as long as it's been installed correctly.
Ok cool. It's installed correctly. It was running great before I replaced the brake lines. Now it just spins over without trying to crank. I know I'm getting fire to the plugs and have gas in the carb. Thinking it has something to do with timing.