Quote:
Originally posted by Mr.Fixit
The problems you have with ther Hilborn FI setup is inherent on a multicarb setup as well. Even with multi-feedback efi, since you are not running a factory setup, you will still have to tune by plugs, sounds, and drivability to get your baseline tune-up. The differences between carburators and fuel injection are numerous, even with true mechanical FI. Mechanical FI makes more power than carbs. A simple efi controller that mimics mechanical FI fuel delivery will make more power too.
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I am not familiar with the Hilborn setup but if it doesn't use an oxygen sensor then it is probably pretty rudimentary.
If you are considering EFI, I would suggest you work with an experienced tuner. BDS in Florida is one I know of. This tuner can lead you through what would be needed for a good EFI system, including a means of gathering vacuum in a common plenum for good MAP readings and ditto for the IAC.
Also, since you are dealing with a Windsor block, there are any number of routes you could take using the Factory harness and control system (you could probably do something like a TWM setup being fed by a common air-intake/plenum area being fed by the mass-air sensor) , again it would help to have someone to guide you through your options.
The thing about using a tuner is you can often get a close base-map from him to get you close and started. Speedpro tuners abound and SBC efi-maps can closely approximate what you will be needing.
If you're going to spend thousands on efi (or webers) I would make sure that the end result provides you with the flexibility/capability you need to best power your car.