carb to intake spacer

Hi Guys, Am I missing a spacer between my GM 2bbl carb and stock intake, like I had on my 327 4bbl? The bolt pattern on the intake measures 31/4" left-to-right and 1 7/8" front-to-back. The carb bolt holes measure 3 5/8" left-to-right and 2" front-to-back. Thanx, Dean