I was wanting to know what plug would be the best to use in my 77" Ironhead 1000cc sporty, and could you tell me the ID number for that plug. and where the best place would be to get them, Walmart, autozone, whatever?//// Thanks.

 

This should get you on the right track, you can usually find them at any auto supply or harley dealer.

You'll find the list here... Spark plugs

 

man is a vault of info - no clue how he does it

 

Nice to have friends like that on the forum. Tim

 

Thanks for the link.