I went to the autoparts store that carries Autolite (im in Canada) and I told them I wanted 3924s or 3925s. They said that those are not the right plug there smaller for probes etc.
They told me I needed Autolite 25s.
I have H/C/I (iron heads). I thought all you guys with iron heads ran 3924 or 3925? Or do I have my numbers wrong and he is right?
Also he said to gap at .054 I was thinking .050 is that good?
THANKS AND SORRY FOR THIS STUPID PLUG QUESTION AGAIN!
They told me I needed Autolite 25s.
I have H/C/I (iron heads). I thought all you guys with iron heads ran 3924 or 3925? Or do I have my numbers wrong and he is right?
Also he said to gap at .054 I was thinking .050 is that good?
THANKS AND SORRY FOR THIS STUPID PLUG QUESTION AGAIN!