103 is two heat ranges colder, you dont need them, you can run the stock plugs up until you get more mods, too cold of a plug and you'll waste gas
|
Autolite 606's are good plugs when putting in new ones...they are 1 heat range colder...then the 104's, then the 103's...
They are pretty much the same as the 606's...I just know that they sell them and they might be JUST a bit cooler than 606's but not as cold as 104's.
« Previous Thread | Next Thread » |
Tags for this Thread |