Question about carbs for tunnel rams

rumblefish360 said
Remove the distributor and ether rotate the rotor 180*’s outa d then re route the wires accordingly or move the oil pump drive with a big screw driver. With the large flat top screw driver, stick it in the pump drive as if removing the drive but just keep rotating the drive a number of teeth u til the distributor clears.

This is going to sound silly, but what will happen to the firing order by moving the oil pump drive?
I can't spin it 180* as the vac adv hits the firewall.
Also, is it possible to actually remove the vac adv unit all together? It doesn't get used anyway.