I picked up an awesome 1994 Chevy, 5.7L, 5 speed manual, C2500 truck.

I'm really loving this truck --only problem is that it failed the emissions test for HC. It does smell a little rich --but there are no CEL codes and my OBD2 scanner won't read live data (and this is OBD1). I'm hoping I can learn from your forum --how to work on EFI/TBI with OBD1 and not only fix the emission problem but also increase engine performance.

Thanks!