spark plug

[onebad34]

What is the correct spark plug (number) for a 67 camaro, 396/325, and where can they be purchased.  thanks  Pete

[Steve68]

Service manual lists in the "Tune Up Chart" AC 43N as standard and AC C42N for Cold.  I have seen original 4 green stripe AC's for sale on Ebay.  Local part stores also have the AC43N the last time I checked.

Steve

[JohnZ]

The R45XLS also works well as a normal street plug.

[onebad34]

would the R45XLS be acceptable on a judged car being original? 

[JohnZ]

would the R45XLS be acceptable on a judged car being original? 

Probably not.