Speeduino MPFI vs Holley Sniper EFI or MPFI vs TBI(my observations)

Why mess with individual ignition channels when EDIS module does it for you (acts like 1 then does the ignition sequencing)? I suppose the 60-2 wheel may not be compatible with EDIS. That is an interesting board, may have to check it out. Seems many random MS problems were poor grounds or noisy VR circuits.

PS>>> the EDIS is proprietary to the 36-1 wheel as it takes 1 revolution to 'set' the timing of the EDIS sequencer. It counts the pulses (from the missing tooth) and fires the corresponding coil pack every 120 degrees for a 6, every 90 for a V8, etc. The coil pack sends a spark to 2 cylinders at once, wired in pairs so one on the compression stroke and the other on the exhaust stroke, ie. a 'wasted' spark. (1-6, 8-5, 4-7, 3-2 on a V8) You'd think the wasted spark would steal power from the combustion spark but it really doesnt. combustion side is usually 4X what the exhaust side is. It also does the advance and retard by a signal from the ECU, pretty smart little box. Also has a 10 BTDC 'limp home' mode in the absence of the SAW signal.