74 challenger. Motor home engine. 440 The cam in it is crane xe274h-10. Stock low compression. I didn’t do the work to it. It runs good but idle sucks. Not horrible don’t get me wrong but I want a smooth idle. I won’t ever probably go past 5k rpm. I just want to drive it around. What do you think about this Melling cam. I’ve had good luck using their rv type cam before but it’s been twelve years since then. Are they still good quality. This is supposed to be high performance stock for a 68 440 hp.