big cubes and idle

@ Andy, that 512 must be a beast! now that 496 of yours, thats right in the ballpark. you're right about the cams, so many just dont get the smooth idle thing. I've been researching cams for hours a day for a week, and I haven't come across a lot of idle characteristics info. BUT...what I've found mirrors your post, 242 and up intake seems to be where the lope starts. my short list is 238 /242 and a 242/246 hughes cam. in your opinion which would you choose?