I'm not really sure I'm more of a body guy than an engine builder that's why I mentioned it on here I value the option of those that know more about it than I doWhat kind of duration are you looking at? I put a 212/218 roller cam in my dually and had to have it custom cut to get lift in the .520" range. That much lift with such short duration is tough to find and is gonna be tougher with a flat tappet cam I suspect. I went through Schneider Cams and had a great experience. They split off of either Comp or Crower way back in the day and are a very legit operation.