Spark plug recommendation
 

What spark plugs do you guys recommend I'm running Kauffman High ports with 74cc Chambers. Just need a part number so I can go down and pick up some plugs. Just need a baseline plug to start with...I plan on racing end of this month...temps will likely be in the high 80s liw 90s. It's my first set of aluminum heads and so I just thought I'd ask you guys what you running for spark plugs on Kaufman High ports.

Here are a few.

https://forums.maxperformanceinc.com...d.php?t=851232

NGK R5672A-8 Projected tip. NA motor.

I have a set of the 56cc High Ports on my engine. Kauffman built the engine and they came with the NGK 5671A-9 plugs. I have continued using the same plugs.

I run the -9 plugs as well

Thanks everyone .. I went with the NGK R5672A-8