[Ricosan]

Hey Vic,

I’ve enjoyed your posts. I’m still reading.
Last week I came across a brief discussion of the right spark plug to use in our flathead engines. I’ve been using Champion D16 in my 34 cabriolet with original aluminum heads. You recommended Autolite 437. I rounded up 8 437 plugs but they are too small..

Am I getting the wrong 437 plug?

Richard