There are two versions of the 22RE. A tall block, and a short block they introduced in '85. In other parts of the world, it also got different EFI in 85 (TCCS) but as we were running leaded at the time, we got the older analog EFI on the later block.
I guess that doesn't concern you as it's a 22R, but it should be a shortblock if that helps at all.