My name is Keith in Nashville, Tn. I have a 1967 GS 400. When having the carburetor rebuilt found out that it is a 7028212 for a late 60's Chevy 327. What I need is a one year made, 7027146 and they had no number stamped on them just a tag. Since Buick only made 18,000 GS that year, the 1st for the 400 engine, then changed the intake design, they have been hard to find. Any help locating the correct carburetor is appreciated!