'89 Corvette injector firing

[CSH-HQ]

>More to the point it makes virtualy no differance in power output which
>stratagy is employed. You 89 F car uses right left batch fire and "all"
>batch fire. The r/l batch is used most of the time, "all" batch is used near
>WOT. Thwese are called double fire and single fire by GM.

Now, I'm confused again.  Last I remember I measured the resistance from the 
injector pins at the ecm on the 165/730/749, and all showed a single final 
driver (except sunbird P+H application).
  Or is this single fire/double fire per engine revolution?.
Grumpy
>
>This is why TBI system convert to Multi-Port, (if all the time sensitive
>filers are re-done).
>
>There are some small gains in emissions for sequental file at or near idle
>operation.
>
>Some TBI system never fire in sync with the engine, they typicaly fire on a
>12.5 msec clock; with out regard to engine position.