Just recently swapped a 91 TII 13b in my 82 RX7. Bought this setup off my buddy and said he had this exact setup running in his FC.

Setup includes:

Rebuilt 91 TII 13B w/ Rebuilt Tranny
Wolf 3D V4 ECU
FD Ignitor
FC coil packs
MSD Spark plug wires
Bee-R (Not powered yet)
R32 Skyline fuel filter
Walbro 255lph fuel pump
FPR

So here's the story...scrapped the 12a and swapped this in. Wired my ECU, Fuel pump and coil packs into seperate relays and switches and have a push button start as well. When i switch the power on, the coils all have +12V to them, starter cranks, ECU lights up and hand controller turns on fine. I have a bunch of extra grounds that I added so I don't think there's a grounding issue. The (-)'s on the coil packs are all wired to the FD ignitor.

For some reason I'm not getting spark on the Trailing side. Hooked up a spark tester, Leading fires fine but nothing at all from Trailing.

Any suggestions would be great, thanks to anybody in advance for the help.