Thanks, but I didn't really need an explaination of why a roller is better than a flat tappet cam. point is, if your application can't utilize the extra area under the curve, it's a waste of $. Yes, there is a point of no return in regards to aggressive lobe ramps, and it applies to roller cams also. With flat tappet cams, that point is usually determined by the lifter diameter. With rollers, the point is usually determined by how strong you can make the rest of the valve train. I still contend that if you are running a cam under .650 lift, the negatives to running a roller outweigh the positives. You pays yo money and you takes yo chances.