1990 - 92 Camaro TPI used Small Cap HEI
1990 - 91 Corvette TPI use the Large Cap HEI

Personal preference, I avoid Vette .bin files when possible.

The black 24 pin / 32 pin connectors 1227165 and 1227730 are the same (pinout are different), just a yellow connector is needed for a 1227165 to 1227730 upgrade.


dave w