I am most likely removing my uncut 66 core support and replacing it with a later one as I am switching to a V8 and Power steering to my 66. I'm in Sonoma. If I do this as opposed to altering my existing support I'd be happy to sell mine to you for the cost of the new support and shipping (about $250) or so. If you're interested you can text me at (650) 619-7524. I'll likely be deciding next week when the new core support arrives. Cheers,
John