[david_351]

hey im just wondering if anyone can tell me the stock ignition timing for the L83, L98, LT1 and LT4?

 

[T.M.]

LT1 &4 are "OPTI-SPARKS"

If i remember correctly,with the EST by-pass wire disconnected,the timing is set at -6.It's been many years since i had a distibutor vette,91 was the last year.