Car lasted 4 years at 600rwhp with 150 shot and tr6's
motor was hurt with 200 shot and 6 plug a/f was lean but only got above 13/1 for split second. So I think the cyl temps were just to hot with that plug.
It did make 686 rwhp at about 5500 rpm on the pass when the plugs were melted. Not to shaby
Not knocking anyone but just got to compare apples to apples. Set that thing up for 200 and let it eat. I know this one guy with this slow white LT1 T/A that sprays 200 and it runs ok.
