Advancing cam 2 degrees

moves the power band lower. I had a 340 with a 284/484 duration/lift that sounded like a stock 318 because I had advanced the cam 6 degrees. Ran great on the street with a 2300 stall in a Volare. I added an 8 3/4 and ran either a 2.83/3.23 or 430 gear depending on what I wanted. The 4.30 was for the local 3/8 mile track. It was a low comp. 340 with 650 holley and hookers. Ran 13.08 on street tires on a very tired motor.