Hi everyone. I'm new to this site so any info would help. I have a 04 2500 with a 6.0L. I use it to tow a 12000 lb 5th wheel. I put 243 heads on to bump the compression up and also have a diablo tunner. Other than that pretty stock. I'm looking for a cam that would give more torque and mileage while towing. Also any input on roller rockers 1.7 or 1.8 or just leave the stock ones alone?