3. Next the camshaft was checked on his Cam Plus Pro software and digitizer. Based on a 1.5:1 rocker arm ratio, peak lift was 0.63047 on the intake side and 0.62869 on the exhaust side. At 0.050, the duration was 264.3/267.8 degrees respectively. The exhaust side rocker arm was a higher 1.6:1 ratio, so Rolenc retested based on the larger exhaust rockers. The intake numbers stayed the same, but the peak exhaust lift increased to 0.67060-inch, which is accurate to the original cam card specs.