I am trying to run a FAST XFI on a turbo charged 292 in line Chevrolet motor. Nobody makes a dual sync distributor for this application. I was able to mount a discrete cam sensor and trigger off A magnet that I installed in the cam gear. I am also trying to run a MSD Pro Billet distributor and get the crank signal for the inductive crank pick-up from it. I understand that if I can not get signal ahead of cylinder firing, I can not have the XFI control the timing. As luck would have it, I was able to disconnect the vacuum advance can, then rotate the pickup in the housing so that the XFI would see the signal approx 50 degrees before top dead center, then of course lock the pickup in place. I thought this would work as the pick-up moved independently of the rotor position so the rotor phasing is correct. The problem is that the ECU is just not seeing the crank signal (no indicator light). I ohmed out the pick-up and checked the air gap and both are near center of MSD specs. Any ideas beside building some sort of custom crank sensor?