I have a 91 Camaro 305 TBi with the Electric Speedo

The will have a World Class t5 and already has 3.73 rear end gears.

I couldn't find a exact answer for calibration the speedo in the 90-92 camaros. Is it a chip or gears in the tranny I need to change?

Thanks!

Gears in the transmission, a driven gear on the VSS and a drive gear on the output shaft. See the sticky's up top.

Since the gears are difficult to obtain, can use an SGI-5 box between the VSS and the 4-OUT BUFFER box.

RBob.