Late Model BBC Vortec(?) EFI retrofit to Mark IV BBC

[BBPanel]

There is more than one option.........
There is the option of using a LS computer 12200411, which is OBD2 which requires both the cam and crank signal. This option requires using a highly modified (used) 1996 ~ 2000 factory 454 Vortec wiring harness. This option allows using a 4L80E transmission. Custom OBD2 computer flash and tuning also required. Most likely the best and most expensive option.

The Vortec intake fits the Mark IV heads. dave w

Thanks Dave - that helps a lot. I've got several of the 411 ECU's so that is probably the route I'll take. Is 1996-2000 the year range for the Vortec efi manifold only?