dynoed my 416

I don't think lobe centers alone will change much of anything. It's just a mild cam on that package. Not sure what every part is in it, but I'm sure cylinder pressure is not a problem...lol. Taking out valve train geometry loss (worse with hydraulic rollers than even std LA) and the usual rocker ration errors, that cam is only about .520/.530 lift at the valve. It's not meant to make mad power, just stone reliable and torquey. With plenty of bolt in expansion available. I also agree if getting the most out of the engine is you ultimate goal, a flow test of your heads (not advertised "stage II" from Shady Dell, is the first order of business.