Ask him if he changed the cam to an L35 at the same time the intake and carb were swapped. Not much else different between the 34 and 35 but a quarter of a percent compression less. The intake and Holley were never a part of an L34 either, so...
Like others have said, it IS a very nice looking car. I'm not one to place a value, as I'm still flabbergasted at the prices they have climbed to over the past few years. To me, if you can get it for anything under 40k, you're probably doing alright.