diff --git a/firmware/config/engines/gm_sbc.cpp b/firmware/config/engines/gm_sbc.cpp
index eeda2e9731..850a1a7b69 100644
--- a/firmware/config/engines/gm_sbc.cpp
+++ b/firmware/config/engines/gm_sbc.cpp
@@ -36,12 +36,23 @@ void setSbc() {
 	engineConfiguration->firingOrder = FO_1_8_4_3_6_5_7_2;
 	engineConfiguration->displacement = 5.2;
 
+    engineConfiguration->crankingInjectionMode = IM_SINGLE_POINT;
+    engineConfiguration->injectionMode = IM_SINGLE_POINT;
+
 	engineConfiguration->etbFunctions[0] = DC_None;
 	engineConfiguration->etbFunctions[1] = DC_None;
 
 	strcpy(engineConfiguration->engineMake, ENGINE_MAKE_GM);
 	strcpy(engineConfiguration->engineCode, "SBC");
 
+    gppwm_channel *vtsControl = &engineConfiguration->gppwm[0];
+   	vtsControl->pwmFrequency = 0;
+   	strcpy(engineConfiguration->gpPwmNote[0], "ign ovrrd B");
+
+#if HW_PROTEUS
+    vtsControl->pin = PROTEUS_IGN_12;
+#endif // HW_PROTEUS
+
  	setStepperHw();
 
 	// 8 cylinders one coil HEI trigger