[wooftfd]

Ok, put in a new motor, 1964 GTO, 1964 421, fresh build, mild motor, HEI, M&H electrical wiring harness...,
Had engine low voltage to coil while running, so installed simple relay with full 12V power, triggered by normal coil + wire. Low voltage backfeed from the dash battery light system kept the relay energized, so car would run after switched off. Next step was to put a IN4002 Diode on the R Alternator wire. Black with White stripe, goes to the 2rd position on voltage regulator. Car starts and stops with ignition switch, but now battery light is on while car is running, Bright, and voltage from Alternator jumps up to 16... only thing I did was install the diode... F wire (2) is blue wire, goes to position 1 on Voltage Regulator, has o volts in key off, 9.7V with key in run position. Diode was to correct "runon" and did.

No electrical issues prior to the diode install... voltage constant, 14.5V, battery light operated as normal... Thoughts???