diesel engine fuel systems?
 

Whats the advanage of an EFI setup over the old Mechanical fuel system set up on the IDI engines, as far as more power and economy, costs to maintain?

well, considering NO idi EVER came with EFI, the cost would probly be more than you would want to spend.

I'd beleave it :)

its not (EFI....thats Electronic fuel injection) the idi is mechanical fuel injected.... unlike the power choke which has electronicly fired injectors..... the power stroke does have the capacity for more power but they are full of thier own problems as well....