Re: World's most complicate fuel system wiring...
I'm not morally certain, but I think the Ford collision switch I am using is intended for pre-relay. At least the connectors are quite small, I wouldn't expect to run 30 amps through them.
The controller is electronic, but its solid state, so its not like a relay that would stick. You're right, though, conceivably it could somehow fail in the ON position.
The ECM handles the trigger, and as far as I know, isn't aware of the cranking state, so I assume it provides power during run and crank. Odds are even if it didn't, there'd be enough fuel pressure residiual in the system to fire the injectors during crank...
Factory setups generally prime and then wait for oil pressure, so there's always a brief second or two during cranking before oil pressure comes up, and they seem to handle that ok.
Yes, this is for MPFI on the '69.
1969 RS/SS 396 Camaro [MPFI Supercharged 502 Under Construction]
2007 427 Z06 Corvette
1969 Pontiac 2+2 427/390
2003 CL600 BiTurbo Renntech Stage III (635hp - [email protected]
2006 Range Rover Eaton Supercharged