1986 CJ-7 Inline 6 258 with Weber Carb and Borla Headers

Hello I have a 258 Inline 6 cylinder on a 86 CJ-7 with a weber carb. I have borla headers and exhaust and need an intake manifold. Was looking at Offenhauser intakes. Which model should I purchase:
— 6257DP In the Reviews on Summit racing website, it states that this manifold did not work with Borla Headers – I do not want to make the same mistake
— 6258C — Wondering if this would work with Borla Headers?
— 6258CW — In your catalog https://offenhauser.co/wp-content/uploads/2018/04/Offenhauser-Catalog-1987.pdf (page 9) — it states for Weber carbs — you need intake # 6258CW — Will it fit with borla headers? How much, where can I get it and long would it get to be delivered in the US.
Thank you