tryin to break in new engine, ruff idle

Well at this point I guess I would just go ahead and put the adjustables in seeing as you have them and don't have to buy them, then you can back at it. I had a .475 lift in my old motor and the oem rockers chattered bad so I had to put in a set of adjustables, at that time 1983, I didn't even think of getting longer pushrods..good luck keep us informed