Well, I purchased an SMT-6 Piggy Back after I installed the 30lb injectors to help with my rich mixtures at low and mid-range RPM's. Unfortunately, with my Shark being my "daily driver" and my busy schedule, I don't have the time to play with it.

It's configured for the 85-86 928's, but it can be re-configured for others cars

Slightly used, I'm selling it for $250.00.

 

SOLD!!