what heads to run on a 273

I went back and looked at the specs on your cam. I must have been looking at the the wrong cam number on the Comp website when I responded earlier. That should work good and sound good with a bit of lope at idle. It's 10 deg bigger duration than my Isky E-4 and .043 more lift. I wonder if anyone here has used this cam in a 273. It would be fun to hear what it sounds like. Mike