I recently put in a aftermarket header 4-1 gsr, I realized that my top end is lagging a little bit, What Degrees Of the cams should I asjust to make my car perform better? rite no exhaust is +2 * and intake is -1*. let me know whats better, im not knowledgable about doing this thanks

 

You really need to get your car on a dyno, theres no way we can tell what setting is best.
Having said that advancing the intake cam and retarding exhaust is a start, try a degree at a time and try it at your own peril