I saw the IR EFI system on thier web page and called them, PI.
The picture looks like the Kinsler manifold, throttle bodies are part of the manifold which is rifle drilled.
I was told that the system is 351w ONLY. They have not built a 351c system yet.
I don't know what the issues are with that other then the tuning of the software, but at this point, what do I know? I'm still just looking at pictures and the information is very illusive, probably very intentionally.
I think Dennis Q dropped it because of the lack of interest/cost/hassle involved. It just isn't worth his time and aggrivation I surmise.