Holley 4D1

[Eric J. Lilleness]

I'm considering a Holley 4Di for a moderately built Ford 460, about 475 HP.

My main goal is passing emissions, but I would also like some of the other
features of EFI, such as not hitting 2500 RPM when I cold-start the damn thing
at 0530 to go to work.......

As an FYI, I had a shop to the actual motor R&R, but picked all the components
myself, as well as porting the heads, so feel free to send questions on big
Fords my way.

Questions:

(1) How will emissions on a Holley 4Di equipped engine compare to a factory EFI? 

(2) Is there a way to insure that (as an example) the front right injector
will always be the injector that fires during the #1 cylinder's intake stroke?
This would seem to require that the ECU "knows" what cylinder each ignition
pulse is intended for.
 
(3) If the answer to the above is "no", will emissions be about the same as, 
or worse than batch-fired port injection? 
 
(4) Is the timing of the injector firing progammable in a manner similar to 
ignition advance varying as a function of RPM? 
 
(5) Iv'e heard a few love/hate stories on Holley EFI; but how are their
current products, especially the 4Di?

		Thanks, Eric