When selecting a cam for a Hemi, 12:1 572 street/strip Hemi, would the straight lobe pattern on duration be what is used or are the Hemi guys still using a split lobe pattern? Here is a street Hemi cam pattern i found, 276/280 and here is a race pattern 281/281 both at .050". I understand the Hemi head flows much better than a wedge head, so not certain what is needed in that aspect. Also the lobe sep, i have seen 106, 108, 110 and 112 used in this app. What works best in this app? 3400# 727/8" 5500 stall. Thanks