67 fan shroud/fan question

[chewychevy67]

OK. So when I got my truck I'm building the motor and transmission, 327 th400, were in the box and not assembled so now I am mocking everything up before paint and everything is going well but I have now put the fan and shroud on and my fan sits pretty much flush with the back of the shroud. I have read it should be half in and half out. I have confirmed that my shroud is the shorter snout ac unit and my clutch fan is nos 3883158 which is correct for the cast water pump pulley. I'm wondering if there was a shorter shroud for 67 or was this how they made it that year? Anyone got any info? This is the shroud that was in the cab when i got the truck so i assume its original.