hello, i have a mellings cam, MTF-1 is the part #. anyways i just recently installed a torker II intake that puts the power range somewhere from 2300-5500. my cam i believe is from idle to 5000, it has a good lope to it but when i had the motor in my truck with the heavy c6, it needed a good stall and more gear. now that i have a lighter vehicle and a 5 speed, it runs way better. but i want to get a bigger cam and some different springs for the cam, i just want a cam that will match my intake's range. what is a good cam. it is not a roller cam but the block is roller ready and i have the spider bars and pushrods to change over to roller. but with a new roller cam, would i need new roller lifters or are those reusable unlike the flat tappet cams and lifters. anybody have any suggestions.