Thanks for the response, gtobypontiac.I have not looked for a build sheet. The PHS return sheet I got matches all the options on the car as well as the colors. I guess someone has changed the block at one time and got lucky to find a 66 GTO 389 with refect dates. My car was built 01A and the block is dated A66, heads A46, block A46. That's too bad because I thought it was a matching #. Will this depreciate the car? Is just the cam different on the 335HP and 360HP? The heads are 093..I think.I'd like to completely restore the car but this is a let down.The color code is LL. It's hasn't been on the road since '77 and is painted purple with heavy metal flake and a pint stripe going down the hood and deck! UGH!The interior is black.
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