What plugs are you using?

[01aford]

I've been using Champion H10's and I'm thinking about trying another set.
What are you guys running in your 85 hp Flattys?

 

[Rowdy]

Using Autolite 216's right now. Just got the 38 pu running 3 weeks ago, still not drivable so I have not done a heat range check on them. I prefer autlites for most applications as apposed to Champion's. Rod

 

[ken ct]

I use D-21 which is a hotter Champ for 18 mm engines.Will not fit in H-10 engines.Been using them for 20 odd yrs. Tried 1 set of NGK's and deep 6th them within a month. ken ct.

 

[Mick/mo]

I think most any good plugs will be just fine if you have a good strong ignition system.

 

[B Duncan]

Ive been running NGK B4-L's. Ive had the same set for over six years. Just replaced them with a new set. Been working great on a mild 8ba with 2x2's, cam, and a unilite dizzy.

 

[Pat/Ohio]

I am currently using the Autolite 216 also. No problems to report. I like the black base which is what the original Champion H-10s had. Pat