[RVTOY]

IO360 -180 hp. M1B. The iridium plugs have been awesome. I had Mags internals and points reset with E-tool, but forgot to put spark plug gap in my log. Why asking? Not as smooth. Had two AP's recheck my timing and the Mag points gap. As taken out of warm engine they are about .020.
George

 

[RONSIM]

.015-.018

Were the numbers I could find with the google search.

I love mine, but would be afraid to try to change the gap.

R.

 

[RVTOY]

Thanks! It just seems a little small for the fine wire.

 

[RVTOY]

Called about gap

Fine wire gap on all autolite is .017 to .021.