Thread: What spark plugs do I need? Thanks in advance...

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I personally don't see much reason to change from the factory recommended plug for that application. I would change to as good of a plug as you can find. I've always been a fan of NGK plugs and recently pulled the Autolites out of my sbf in my 27 and went to NGK's. Car runs MUCH better and cleaner. But that is just my personal choice.

Don

NGK's are OK but there is nothing wrong with AC Delco spark plugs.
I'd put the factory ones in to start with and check them in a couple of days of driving to see how they are burning, to see if you need a colder or hotter plug.

by factory, you mean the factory plugs that were recommended for the FI application? Is it correct to use the same plugs for a carburetor application?