Just read through your other post. you said: so replaced f2 fuse and disconnected sc . drove the car a few miles VERY easily 1/4 throttle max . checked fuse , good . drove the car again around the block this time pedal all the way to the floor , sc still unhooked. fuse blew

Could it be that the sc did not even try to come on when you were at 1/4 throttle, but then at wot the PCM sent a signal to the sc clutch to engage and that is when the fuse blew. Could be the short is in the wiring from PCM to sc clutch or THE CLUTCH ITSELF IS BAD. splice 104 is located on top of the left side of manifold. Just a guess; I'm no electronic tech!