well its time for a tune up, i have 1989 Honda CRX Si with a JDM D15B and well just wondering whats goood plug besides plugs that are 10 dollars a damn plug lol. yeah my car has been running rich lately, just gonna do a tune up and oil change and see how it runs. also i grounded out my engine better to, it seems to run better but my transmission mount and motor mount are not connected so i havnt drove it lately wouldnt know how much of an improvement it is.

Also my car has a slight rough idle like it idles normal then high then normal then high...
any ideas?

 

just get the regular NGK's they are like 2 bucks each at advance auto

 

thanks man