Intake runner lengths

[Clive Apps Techno-Logicals 416 510 0020]

> 
> >There is only one system I know of using the 2nd Butterfly/runners,
> >and in that system them turn on a second set of injectors, the
> >secondary injectors run at the same duty cycle as the primary.
> >BTW, on that system the sec buttterfly was operated by a vac.
> >diapharm.  While seemingly crude it was what the ZR-1 vettes
> >used
> >
> 
>     The 1990-1993 Isuzu 1.6L DOHC engine (in both turbo and non-turbo trim)
> has secondary intake runners operated by an ECM controlled solenoid (RPM
> based opening).  This engine is also in some Geo Storm GSi cars, and in both
> Isuzu and Geo vehicles is controlled by a Delco ECM.


so does 85-86 Toy Cor GTS

Clive