Disconnected and it went to 1200rpm.

When I reconnected the engine dies. I noticed that the engine only dies when it is hot.

Where should I check for the 4 to 6v? At the plug when it's connected? or punch through wires with the multimeter?

Currently rpm in drive is about 70. In park it's about 850.

The increase to 10btdc will help low rpm throttle response....and unless ELR (Electronic Idle Speed Control.) is working, a slight increase in rpm's.
Target idle rpm's in D is = 500.

Just to clarify it never dies at idle, ever. It dies coming to idle from 1300 to 1500. So if the engine is hot and I am nuetral and I hold the gas at 1500rpms and drop it, the rpm goes to 100 and tries to come back up... but dies. If I do the same thing but to 2300 then it goes down to 200 and then comes back to 800.

I will advance the timing next.
THANK YOU SOOOO MUCH.

Dmitri