Any Toyota mechanics in the house?

My daughter has a 1993 Toyota Camry. During the last blizzard she got home and left the headlights on which killed the battery stone dead. I recharged the battery but the car would not start, cranked fine, but no fire. I checked for spark at the plugs and nothing. Pulled the distributor cap and noticed a lot of carbon on the rotor button, so I figured it needed a full tune up. I put new wires, plugs and a whole new distributor because it was only a few dollars more than the sum of its parts. Now comes the problem, I can't set the timing to the manual specification of 10 BTDC, I can get it to 0 or TDC and the limit of turning the distributor is reached. It runs pretty good at that setting but I wonder if it will run better if set correctly. The old distributor was bottomed out too but I didn't and couldn't check the before timing.

BTW - testing the old coil after the fact I found the coil was bad. Is there some logical explanation in killing the battery causing that to happen or was it just a coincidence?
You got to get the computer to let go off control of timing to set base idle and timing.
Warm up engine to operating temperature and shut off.
Find Toyota diagnostic connector under hood and get a jumper wire and jump TE1 and E1 together and start.Then adjust your timing 10 degrees BTDC at 750rpm.