Just got here and catching-up. Cool build! Lots of little ideas, but a few randomly:
I'd say the Hyperspark is fine for now, but eventually you'll want to integrate ignition with fuel so you can graph, analyze and diagnostically tune them together. So much easier, quicker, and better tuning that way.
Batch fire (paired injectors) is fine, but I run them with two injections per-cycle, so the effect is quasi-sequential. Many of today's high-tech OEM systems fire two squirts per-injector per-cycle now, for improved efficiency. Perfect fuel distribution and longer fuel dwell (vaporization) that way, equal response to seq, and can integrate with waste-spark coil packs, CNP, COP, etc.
Depending on the ECM you use, just a missing-tooth cam signal can get you full sequential. Else, a missing-tooth crank wheel only for paired and waste-spark, or add a cycle sensor ("cam " sensor) for sequential or timed semi-sequential. Check your damper diameter against the various factory toothed wheels for a possible easy fit.
If no joy, there are many companies that will cut a trigger wheel to your spec's for mounting on the damper, or like this one I zapped onto a stock pulley on a Ford V8. You can also notch your pulley edge, or the balancer itself (not the rubber damper ring), the flywheel or flexplate, etc.
"Cam" sensor is very limiting conceptually. I've done cycle sensors (1 pulse per 720° crank) on cut-down distributors, on timing covers to read the gear or fuel pump eccentric, and even a Hall sensor reading a rocker arm. Lots of options if you get away from the "cam" word, and it only indicates it's a cycle sensor.
If you're not having fun, you're not doing it right!
. I will give that a try when I get the parts/tools. Thanks for the info.
