Hey i purchased a block off kit from rx7store.net, and it seems im short one plate. this is the one im missing..

 

That one doesn't come in the kit. You can order it from here:

http://www.2751engineering.com/2751parts.html

I can't remember the name off the top of my head for that one. It's either the Split Air Valve or the Air Control Valve Pipe. Just take a look at the opening that it's suppose to cover, and the shape of the plate should be fairly apparent.

 

It is the split air pipe cover.

 

I wouldn't sweat that one too hard - with no air pump or air control valve, that hole is dead space. A block-off plate is just window dressing at this point.

Dale