1989 74L B1 Tune Up Spark Plug Opinion

[fat_girl]

"Doing tune up and have never

"Doing tune up and have never been a big fan of Champion plugs. Any opinions out there? NGK, ND, E3......what has worked well for you.

Thanks, Mike"

 

[makomark]

NGK's have been fine for o

NGK's have been fine for over a decade.

AC's are close seconds as long as they are the M(arine) types.

 

[bondo]

"[b]"1989 7.4L"[/b]

""1989 7.4L"

Ayuh,... AC Delco, MR43T,...
They're an Alloy body that usually don't Rust..."