I used to use Bosch Pt+4 plugs in my 95 Integra GSR & they worked fine. But then I began reading about how Honda doesn't like them, so I switched to NGK. I don't know why my car was OK with those plugs, but they worked.

 

When I'm able to get back home I'll look up those friendly spark plugs to see which brand they were, those dudes said it was japan made. But it sucked compared to Bosch. :-(

 

Copper plugs burn more efficient, but platinum last longer.

Also like someone else said spray it, if you heare knocking keep spraying

 

lol I only said that cus the OP didn’t take the time to search for the answers they are seeking...but spary is the quickest/easiest/fastest way to a car go faster...

 

The answer I was looking for is "Down Hill" y'all. Down Hill. haha

 

From experience(like i have alot of that stocked away somewhere) ive used seafoam to clean the carbon out of my engine. Used a higher octane fuel. Also i used a octane booster....(Lucas makes an awesome one) the boost is noticable but it doesnt last long(of course) But thats why we do this. Its all about preformance...