I have a Hall Pantera Brut 400hp . Its balanced and blue printed. I have a holley 750 duel feed, and Ford duro spark . What would be the right spark plug and gap.I know it has to be a hot plug. Thanks Jay ************************************** See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)