my friend adjusted my cam gear for me its a AEM. i didnt know how to do it so i let him adjust it at his house over night. after i got the car back i drove it and tested it, it did feel faster but it started smoking out of the exhaust pipe after i hit high rpms and Vtec. my other friend told me its tuned to advanced, or its not set right to my timing ignition. anyone know whats up??? please help