Got new build 514 NOS motor that I've been sitting on a long time and am thinking of using soon. Prob is its got these old Motorsport heads, been worked till they bled but they are what they are. Thing is, before I spend all the money to build custom headers I would just assume have the best heads I can legally run in 275 and build the headers to that. I am guessing the 18 bolt Trick flow is the way to go but I need experienced input here. Figure I'd have to change Pistons, cam and intake, swap the fogger stuff over. What else? Am I on right track?