These are the rubbers on the front of the Carburetors that attach to the intake manifolds. There is a particular orientation when installing the OEM ones part number T1240092. Last time I bought the OEM ones they cost under ten bucks each.
Thanks to member Pete (snekeptp) who posted on Wed Jun 27 2007 04:26 PM
Quote:
the divider between the clamps is wider on top
narrow on bottom.
now for the front to back ( engine to carb )
there is a small raised tab on the top of the boot
this is the front ( engine ) side of the boot.
see arrow in photo 
The raised tab Pete speaks of is tiny. One has to look at the mold seam closely to discern it.
