i advanced the timing the motor has more power now, and i fixed a vacume leak and it starts perfect when it is cold now, i have a code 20 now it didnt show after i fixed the vacume leak, and the motor starts and runs perfect for 15 secs untill code 20 shows then it bogs down and loses power, and wants to die, if i shut if off and start it again it runs perfect for 15 secs, then bogs i was reading that this happed to somebody with a bad battery ground, battery isnt losing charge or anything, i got a flow chart to fix the problem from redpepper racing, but somepeople say code 20 wont make you lose power, some say it will, it may be a bad distributor or bad coil within the distributor? or a bad ecu according to the flow chart if there arent any shorts.