It should idle fairly good. It really depends on the LSA. The tighter the angle the rougher the idle. Purple shafts have 112 and idle good but are lazy on the bottom. 108 will keep a fairly good idle and have better throttle response. I am assuming thatyou are runnig street gears. Mine is 232 @.050 with 104 LSA and it idles pretty rough. I knew that when I ordered the cam. I am happy because it performs better thasn expected.