I am fairly unhappy with how my car pulls right now with the 62mm pulley, 30#ers, ES IC piping, 5-5 and rallye outlet. I have not really seen good information about the power gaines from the stage 4 gladders verus the stock unported gladders. My supercharger has been rebuilt recently so I was going to just wait till I needed a rebuild. However since I am so disgruntled about the way the car pulls now, I need to do something. I was figuring that the cam with new lifters, gasket, and a cam gear will come pretty close to the price of the stage 4. And it looks to me like the 260/268 is a pretty mild cam.