470 spark plugs

[baba_bluey]

What brand plug should i use f

What brand plug should i use for a 1980 470 mercruiser? i've been using champion.

 

[kghost]

All are good. Just use the rec

All are good. Just use the reccomended ones.

 

[guyjg]

AC: R42TS gap @ 0.035"

AC: R42TS gap @ 0.035"

Champion: RBL9Y gap @ 0.035"