Finally got my ASA Tuned
PLug heat range matters a lot. Timing as you are dynoing the car. You can hear the car responding well or you can hear it building power slow...If its not crisp and fast you have an issue. You may only be able to extract x amount of horsepower b/c of a restriction or an ignition problem. if the ignition doesnt burn efficiently or the plugs are too hot it will be lazy to make power. Colder then stock plugs arent just for NA applications folks.

