'94 Magnum EFI conversion info.

TT'74 said

I shouldn't be too bad on your 273, but the intake won't work. You'll need to get an EFI intake that will bolt to LA heads, which isn't too hard or costly. You also need a magnum dizzy, a magnum flywheel, and to notch your bell housing for the crank position sensor. All in all though it won't be too much.

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My plan is to make the intake work. My bolt holes are 16 deg off vertical and just slightly inboard of the Magnum hole locations. Custom bent studs and a little grinding may make it work. The ports are taller, so may sculpt the outlets w/ epoxy to match my head. Hood clearance will be tight. I tested the fit when I had my intake off.

Not sure I can make the Magnum ECU work. I got one just to play with. I don't know if the crank sensor is used for EFI (sequential injection) or just spark control. If the later, I can do spark other ways. I put a 36-1 wheel on my crank pulley. I will probably use a Holley Commander 950 ECU I have with the Magnum harness. Another approach is a Megasquirt ECU, but I got the Holley ECU cheaper. I have a Magnum dizzy, but my idea is just for its cam sensor, for a custom ignition idea. I think the cam sensor is used only for EFI by the Magnum ECU. Like many people, I have many parts, some knowledge, but little time.