[DeTomaso] This sucks, up date

[adin at frontier.net]

I guess I was referring to the system, and not thinking. I don't have  
much faith in the ford ignitions.

Friend built a truck for a customer that insisted on Holley EFI system  
- it never worked the same twice, would not respond to changes, etc.   
I don't have much faith here, either.

Thanks for the note.

Quoting Thomas Tornblom <Thomas.Tornblom at hax.se>:

> adin at frontier.net skrev:
>> IF that is the mustang efi distributor:  buy the outside (the    
>> distributor)module and replace.  If this doesn't work, buy the   
>> inside  electronic part and replace.  ONLY BUY FORD PARTS.
>
> A Mustang EFI distributor doesn't work in a 351C. The shaft is too thin
> and the block hole is larger on the 351C than a 5.0 so the body will
> not seat properly.
>
> When I converted my Pantera to Ford EFI I didn't know about the TFI
> problems so I converted the 460 EFI dist, which has an external TFI
> module, to the standard 5.0 setup where the module is mounted to the
> dist.
>
> I've replaced the TFI module once in the 8 years I've run this setup,
> and the module was probably 10 years old when I installed it.
>
>>
>> From what I have heard about the holley fi units - trash it. YMMV!
>
> Can't comment on this, I run a Ford EFI from a 5.0, but with larger
> everything.
>
> Thomas
>>
>>
>>
>>
>> Quoting SOBill at aol.com:
>>
>>> Paul,
>>>
>>> Here's what I think I know.
>>>
>>> Ford TFI ignitions are designed to run with the spark timing  controlled by
>>> a computer.
>>> The TFI module sends a "PIP" (think of it as points opening) signal  to the
>>> computer and the computer sends a "SPOUT" (think of it as Fire-The-Coil)
>>> signal to the TFI module. In the absence of a "SPOUT" signal, the   
>>> TFI module
>>> will produce sparks at a fixed crankshaft timing.
>>>
>>> Your description of how the engine runs sounds, to me, like you are
>>> running with fixed ignition timing.
>>>
>>> Exactly which model of Holley TBI do you have?
>>>
>>> SOBill  Taylor
>>> sobill at aol.com
>>>
>>>
>>>
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>
> -- 
> Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
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