TBI systems

[Fran and Bud]

Part of your answer is:

Model 100's and 200's (including 220) are two point injections 
(2 butterflies/ 2 injectors) typically V6/V8.

Model 300's and 500's are single point injections 
(1 butterfly/ 1 injector) typically 4 cyl.

Model 400 is two single point injections. "Crossfire Injection".
(2 injections-each with 1 butterfly/ 1 injector) typically used on early
"performance" V8's.
Note the two TBI's are different internally and are not interchangeable.
Bud 
----------
>From: "Ross Myers" <ponty at axis.jeack.com.au>
>To: "GM ECM List" <gmecm at efi332.eng.ohio-state.edu>
>Subject: TBI systems
>Date: Mon, Jul 5, 1999, 12:32 AM
>

>Hi all,
>
>With the GM TBI set-ups there was a few different models, I've seen Model
>300, Model 400 and Model 700.
>
>Does anybody know what the differences are, are they interchangeable?.
>
>Thanks
>
>Ross Myers
>