I totally get what you mean. My car will not be identical to yours, and we are talking about an application where when you find 1/8” clearance you got a win. I have a set of those discontinued Hooker 5481 drag headers brand new in box I want to use Why? I like punishment and period pro stock flavour lol. With that being said I want either brackets or templates of such to make and finalize positions myself. I haven’t been able to do any work to car for 7 years now because of job changes and moving twice - gotta get back on it, time is precious. I am unclear of the insulator used, are they just B body ones they used for the L023? I would assume they would have used existing parts rather than develope special ones for 70 cars.