Just a quick overview of why more times than not on street cars that want to race I will leave their torque converters unlocked. quit worrying about what the dyno says and worry about what the time slip says.

Yes many high hp killers are now all switching to lock up converters but let's face it.....you dont have 2000+ hp in your car so let's not argue that point.

Take this for what its worth but this is what I've seen work best.