best spark plug for 51-54 packard?

Posted by Caribbeandude On 2010/1/10 19:48:50

what is the proper and/or best spark plug for a 51-54 Packard, maybe ac45 or champion j8 or??? did the 1954 359 engine use the same plug?

also, does anyone know what plug an Edmunds head used for these cars? thnaks!!!!!!!