There is a considerable difference in Power range between 48 and 57 cams. The 48 comes on low but fizzles out easily by 4500 RPM Where the 57 comes in a little later but will carry up to 5,000 RPM. Two underrated cams for stock 96-in are the TW22 and TW5-6 cams by Woods.. I'm currently running the TW5-6 in a 103 and the power band is amazing..