Holley EFI Sniper question.

[AZCJ5]

So I got a shiny new holley efi sniper with new sniper tank.

Now I am missing my spacer from when I converted to a MC2150.

I found this bbd rebuild kit. Is that the spacer I need for my AMC 258 i6 / 4.2l ?

https://www.4wheelparts.com/p/crown-automotive-carburetor-repair-kit-j8134232/_/R-BKMN-J8134232