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Not Bosch. For plugs, either the AC Delco double platinums for '96 model cars, or similar. My brother is running a Champion double platinum plug that is very similar to the Delco's, and having good luck so far. For plugs, I have used Moroso Blue Max on every LT1 in my fleet.

Don't bother with the Opti until either it or the water pump crap out, just make sure the vent harness is working.
 
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