I am having trouble locating the plugs for a inboard 454 mag MPI Horizon. the label on the engine and the list plug in the manual differ. should i stick with the info from the engine? any suggestions on locating plugs?
engine label - NGK BR6FVX Platinum
manual - NGK BR6FZX Platinum
engine label - NGK BR6FVX Platinum
manual - NGK BR6FZX Platinum