Spark plug issue.
It's cylinder 8, and the engine have very few miles on it.
My question is what spark plugs would you recommend?
Current plugs are acdelco 12621258 41-110.
Thank you ☺
TRUST, I know cylinder ignition as do many here at LS-1 Tech.
I ask about your ignition fitted ?
I ASK you to send (post) a picture of your spark plug BOTH a good/bad plug picture.
The Spark Plug has been DAMAGED by a POOR tune is MY Guess.
DID you TDC the Spark Instant for "0" ?
Lance
The LS engine has a reluctor wheel placed into the crankshaft. (24ex ?)
THAT placement is ALWAYS off by up to 13.5* as measured by TDC reference to a "0" mark placed onto the front pulley.
MY IGN-8 allows for a "trim" adjustment for TDC "true" of the Spark Advance value.
I asked for information about the fitted Ignition ?
Lance


