[lust4speed]

TRADER MIKE 2012, you are saying that you feel that the 041 cam is larger than you like. If this is true, then you do not want to install higher ratio rockers because that will make the cam feel slightly larger and the opposite way you are saying you want to go. 1.65 Ratio rockers increase lift 10% and marginally increases duration. I'd say about another 4° but that is subject to discussion. Regardless, if you are thinking you want a smaller cam then you don't want to go with higher ratio rockers.

It's been years since we burned up a bunch of dyno time moving around the ICL, but every time we moved the ICL either advanced or retarded the net result was usually a loss of overall power. If we advanced the cam we would pick up 5 horsepower down low but loose 20 up on top. Reverse the procedure and retard the cam and pick up some on top and loose even more down on the bottom. We finally had to admit that the cam manufacturers actually knew what they were doing when they set their specs.