318 LA rebuild after losing a valve seat

I installed the cam with the timing dot at 12 o’clock, is there some other way I could’ve screwed it up? And yes, my timing set does have multiple keyways.

I would say you have your cam in right at the stock position, dots in line with each other at TCD on #1. Whether it be 6 & 12 (fires on #6) or 12 & 12 (fires on #1). If it is 6 cam & 12 crank, you just roll the crank around so it fires on #1 at TDC, then you drop in your distributor there pointing to distributor plug wire #1. Dots still in line with a straight edge.

Some folks advance or retard their cam installs by 4° so then the dots will not be in line at TDC. Best to keep your build at the stock setting.