Review on NGK TX08 Premium Spark Plug by Ron Collins

I don't know how to check the spark plug leads when they are brand new other than my son started his Supra for the first time since we brought him home with a blown gasket cylinder have brought heads. October. No errors or sparks going to another element in the block so it's ok now if we check back this time next year hopefully all is still good as I'm NGK I'm not worried. Thank you for a quality product and fast delivery.