Firing order question - 340. Need help!!

I changed the plugs on my 70 Duster 340 this morning and tried to route the plug wires a little better and didn't think to mark where they went - foolishly assuming they were in accordance with the standard firing order. Wrong!!

After I plugged in the wires and turned the car on I got a nice fireworks display out of the top of the carb. Pulled the cap and brought #1 to TDC and the rotor is pointing straight at #1. Could I be 180 degrees out? If so, how do I correct?

Any info would be greatly appreciated.