timing at 30 BTDC?!?!?!?!?!?!?!?!

Those numbers sound about right but every engine/combo is going to be a little different. Also, remember vacuum advance only comes into play at part throttle cruising. Once you jump on the gas you have no vacuum advance and you have no vacuum advance at WOT. That is the reason perfromance distributors have no vacuum advance.

The only way to get the timing optimized for your engine is on a dyno or with many runs at the drag strip.