So for the injected Toy (my kids) you ended up using the factory harness? Don't get a headache this is awhile off for me.

His buddy want to do his but it's a carb so I will be getting a JY harness for it along with the ECM. For now the idea is TBI? Maybe easier to get a MPFI intake? So figuring out ECM, harness, DIS coils, sensors and maching a reluctor ring etc... are where I am at for now.

Right now this is just theory time for me... seeing if it's doable and get ducks in a row. If I am going to do a system for these I'd like to do something differant (DIS) but needs to stay in the realm of cheap easily accessable JY parts for the most part. That reluctor ring, spacer and bracket for crank, even a plug for distributor is not hard or expensive at my machinist.

Would the 7727 need more than one crank signal? If a cam signal is needed I think I would build that into distributor...