All this dynamic compression stuff is giving me a headache. LOL. The Comp 270S is lopey but very tame in a low compression 318 I am running in my short-box A-833 O/D truck these days. 224*@.050", 110LSA, .468" lift. I run the lash at .018/.022" hot but you could open it up to .028/.032" if it was too rough idling in a 273. That E-4 Isky would be a sure-fire stable idle with some authority, but not very choppy. A friend has one in a similar 318 to mine and it's stocker-smooth when warm, idling.
