Dan, Patrick, thanks for your comments.
Im just frustrated with the times I have had to take the headers on and off.
I wont bore you with the detail, but they have been on and off about 4-5 times now. I also had them coated with zircotech ceramic coating, but having fitted one side, had to take 'em off, again, as the coating was too thick for the 4 header pipes to slip into the sidepipes. Ground that off at the ends, fitted drivers side, and now I have discovered that one of the headers is 1/2" too short. Maybe I cut it too short, I dont know. The whole saga has been going on for so long I dont remember what I have or havent done.
My frustration comes from the struggle each time to fit the back 2 header pipes each side of the FE which are very close to the footboxes (2 hours to fit 4 ARP bolts and the gasket). Are there any clever ways to do this? A friend of mine told me to jack the car and work underneath it. I so hate doing this.