Advice Needed - Can't Start Rebuilt 273

Val, with #1 at TDC compression, pull the dizzy and where is the slot on the gear pointing? In my 69 factory shop manual, it shows the "slot" pointing to the 1st intake manifold bolt on the drivers side.(pic says for 340) but I think its the same for all sb's??

Actually, Steve, the "slot" doesn't matter so long as the rotor actually points to the no1 plug when the timing marks are on no1 ready to fire.