Really rich posted by 1995z32tt on September 25, 2014 at 06:38 PM
Message
When I change to 615cc.Ran rich with lots of black smoke and RPM would not go pass 3000rpm. It would shut off after couple minutes of running. I send ecu to z1 and Ashpec for tuning and they didn't do it right. Finally send it to CZP(Conceptzperfomance) and they did it right for around $150. I suggest you send it to them. They will want to know the injectors size,dual or single air filter and what octane fuel you are using. My ran great now.