ORIGINAL: Hpi_mt2
I got a question I know when it gets colder and the air gets denser you run your engine rich unstead of lean well when doing this do you run a hotter plug or what... I did a search but didn't find what I was looking for.
Thanks,
Hpi_mt2
You can run a hotter plug when it gets colder. I've noticed it depends on the engine though. Small block seem to be more finicky than big blocks. Plus it comes down to how cold it gets. Run it with the same plug for a tank, then switch to a hotter plug and see how it works.