Originally Posted by B1MAXX
You got the wrong hole targeted its one of the lower plane ones and holley makes a a little spacer to bring it up the the housing height.

the one up and left from the one your looking at

Hmm, never seen a spacer shruggy But you may be right ?
In the pictures provided it's hard to see which holes line up when the choke is mounted. confused FWIW: The hole with the brass restriction is the one that needs the manifold vacuum source. beer