I put an AEM cam gear on my d16z6 this weekend at 10 degrees advanced and I didn't notice much of anything so I decided to set it at stock until I could figure it out later but when I set it back to zero my car lagged like a son of a bitch until 3 grand. It pissed me off so I put the stock one back on and it drives normal now. What did I do wrong? (p.s. sorry this is so long)